21938040

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 192

約数和(自身を含む): 77182560

約数和(自身を除く): 55244520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 61, 72, 74, 81, 90, 108, 111, 120, 122, 135, 148, 162, 180, 183, 185, 216, 222, 243, 244, 270, 296, 305, 324, 333, 360, 366, 370, 405, 444, 486, 488, 540, 549, 555, 610, 648, 666, 732, 740, 810, 888, 915, 972, 999, 1080, 1098, 1110, 1215, 1220, 1332, 1464, 1480, 1620, 1647, 1665, 1830, 1944, 1998, 2196, 2220, 2257, 2430, 2440, 2664, 2745, 2997, 3240, 3294, 3330, 3660, 3996, 4392, 4440, 4514, 4860, 4941, 4995, 5490, 5994, 6588, 6660, 6771, 7320, 7992, 8235, 8991, 9028, 9720, 9882, 9990, 10980, 11285, 11988, 13176, 13320, 13542, 14823, 14985, 16470, 17982, 18056, 19764, 19980, 20313, 21960, 22570, 23976, 24705, 27084, 29646, 29970, 32940, 33855, 35964, 39528, 39960, 40626, 44955, 45140, 49410, 54168, 59292, 59940, 60939, 65880, 67710, 71928, 74115, 81252, 89910, 90280, 98820, 101565, 118584, 119880, 121878, 135420, 148230, 162504, 179820, 182817, 197640, 203130, 243756, 270840, 296460, 304695, 359640, 365634, 406260, 487512, 548451, 592920, 609390, 731268, 812520, 914085, 1096902, 1218780, 1462536, 1828170, 2193804, 2437560, 2742255, 3656340, 4387608, 5484510, 7312680, 10969020, 21938040]

約数ペア:

[(1, 21938040), (2, 10969020), (3, 7312680), (4, 5484510), (5, 4387608), (6, 3656340), (8, 2742255), (9, 2437560), (10, 2193804), (12, 1828170), (15, 1462536), (18, 1218780), (20, 1096902), (24, 914085), (27, 812520), (30, 731268), (36, 609390), (37, 592920), (40, 548451), (45, 487512), (54, 406260), (60, 365634), (61, 359640), (72, 304695), (74, 296460), (81, 270840), (90, 243756), (108, 203130), (111, 197640), (120, 182817), (122, 179820), (135, 162504), (148, 148230), (162, 135420), (180, 121878), (183, 119880), (185, 118584), (216, 101565), (222, 98820), (243, 90280), (244, 89910), (270, 81252), (296, 74115), (305, 71928), (324, 67710), (333, 65880), (360, 60939), (366, 59940), (370, 59292), (405, 54168), (444, 49410), (486, 45140), (488, 44955), (540, 40626), (549, 39960), (555, 39528), (610, 35964), (648, 33855), (666, 32940), (732, 29970), (740, 29646), (810, 27084), (888, 24705), (915, 23976), (972, 22570), (999, 21960), (1080, 20313), (1098, 19980), (1110, 19764), (1215, 18056), (1220, 17982), (1332, 16470), (1464, 14985), (1480, 14823), (1620, 13542), (1647, 13320), (1665, 13176), (1830, 11988), (1944, 11285), (1998, 10980), (2196, 9990), (2220, 9882), (2257, 9720), (2430, 9028), (2440, 8991), (2664, 8235), (2745, 7992), (2997, 7320), (3240, 6771), (3294, 6660), (3330, 6588), (3660, 5994), (3996, 5490), (4392, 4995), (4440, 4941), (4514, 4860)]