21944520

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:557

約数の個数: 160

約数和(自身を含む): 79584120

約数和(自身を除く): 57639600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 81, 90, 104, 108, 117, 120, 130, 135, 156, 162, 180, 195, 216, 234, 260, 270, 312, 324, 351, 360, 390, 405, 468, 520, 521, 540, 585, 648, 702, 780, 810, 936, 1042, 1053, 1080, 1170, 1404, 1560, 1563, 1620, 1755, 2084, 2106, 2340, 2605, 2808, 3126, 3240, 3510, 4168, 4212, 4680, 4689, 5210, 5265, 6252, 6773, 7020, 7815, 8424, 9378, 10420, 10530, 12504, 13546, 14040, 14067, 15630, 18756, 20319, 20840, 21060, 23445, 27092, 28134, 31260, 33865, 37512, 40638, 42120, 42201, 46890, 54184, 56268, 60957, 62520, 67730, 70335, 81276, 84402, 93780, 101595, 112536, 121914, 135460, 140670, 162552, 168804, 182871, 187560, 203190, 211005, 243828, 270920, 281340, 304785, 337608, 365742, 406380, 422010, 487656, 548613, 562680, 609570, 731484, 812760, 844020, 914355, 1097226, 1219140, 1462968, 1688040, 1828710, 2194452, 2438280, 2743065, 3657420, 4388904, 5486130, 7314840, 10972260, 21944520]

約数ペア:

[(1, 21944520), (2, 10972260), (3, 7314840), (4, 5486130), (5, 4388904), (6, 3657420), (8, 2743065), (9, 2438280), (10, 2194452), (12, 1828710), (13, 1688040), (15, 1462968), (18, 1219140), (20, 1097226), (24, 914355), (26, 844020), (27, 812760), (30, 731484), (36, 609570), (39, 562680), (40, 548613), (45, 487656), (52, 422010), (54, 406380), (60, 365742), (65, 337608), (72, 304785), (78, 281340), (81, 270920), (90, 243828), (104, 211005), (108, 203190), (117, 187560), (120, 182871), (130, 168804), (135, 162552), (156, 140670), (162, 135460), (180, 121914), (195, 112536), (216, 101595), (234, 93780), (260, 84402), (270, 81276), (312, 70335), (324, 67730), (351, 62520), (360, 60957), (390, 56268), (405, 54184), (468, 46890), (520, 42201), (521, 42120), (540, 40638), (585, 37512), (648, 33865), (702, 31260), (780, 28134), (810, 27092), (936, 23445), (1042, 21060), (1053, 20840), (1080, 20319), (1170, 18756), (1404, 15630), (1560, 14067), (1563, 14040), (1620, 13546), (1755, 12504), (2084, 10530), (2106, 10420), (2340, 9378), (2605, 8424), (2808, 7815), (3126, 7020), (3240, 6773), (3510, 6252), (4168, 5265), (4212, 5210), (4680, 4689)]