21881040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:237

約数の個数: 160

約数和(自身を含む): 74566656

約数和(自身を除く): 52685616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 34, 40, 48, 51, 60, 62, 68, 80, 85, 93, 102, 120, 124, 136, 155, 170, 173, 186, 204, 240, 248, 255, 272, 310, 340, 346, 372, 408, 465, 496, 510, 519, 527, 620, 680, 692, 744, 816, 865, 930, 1020, 1038, 1054, 1240, 1360, 1384, 1488, 1581, 1730, 1860, 2040, 2076, 2108, 2480, 2595, 2635, 2768, 2941, 3162, 3460, 3720, 4080, 4152, 4216, 5190, 5270, 5363, 5882, 6324, 6920, 7440, 7905, 8304, 8432, 8823, 10380, 10540, 10726, 11764, 12648, 13840, 14705, 15810, 16089, 17646, 20760, 21080, 21452, 23528, 25296, 26815, 29410, 31620, 32178, 35292, 41520, 42160, 42904, 44115, 47056, 53630, 58820, 63240, 64356, 70584, 80445, 85808, 88230, 91171, 107260, 117640, 126480, 128712, 141168, 160890, 176460, 182342, 214520, 235280, 257424, 273513, 321780, 352920, 364684, 429040, 455855, 547026, 643560, 705840, 729368, 911710, 1094052, 1287120, 1367565, 1458736, 1823420, 2188104, 2735130, 3646840, 4376208, 5470260, 7293680, 10940520, 21881040]

約数ペア:

[(1, 21881040), (2, 10940520), (3, 7293680), (4, 5470260), (5, 4376208), (6, 3646840), (8, 2735130), (10, 2188104), (12, 1823420), (15, 1458736), (16, 1367565), (17, 1287120), (20, 1094052), (24, 911710), (30, 729368), (31, 705840), (34, 643560), (40, 547026), (48, 455855), (51, 429040), (60, 364684), (62, 352920), (68, 321780), (80, 273513), (85, 257424), (93, 235280), (102, 214520), (120, 182342), (124, 176460), (136, 160890), (155, 141168), (170, 128712), (173, 126480), (186, 117640), (204, 107260), (240, 91171), (248, 88230), (255, 85808), (272, 80445), (310, 70584), (340, 64356), (346, 63240), (372, 58820), (408, 53630), (465, 47056), (496, 44115), (510, 42904), (519, 42160), (527, 41520), (620, 35292), (680, 32178), (692, 31620), (744, 29410), (816, 26815), (865, 25296), (930, 23528), (1020, 21452), (1038, 21080), (1054, 20760), (1240, 17646), (1360, 16089), (1384, 15810), (1488, 14705), (1581, 13840), (1730, 12648), (1860, 11764), (2040, 10726), (2076, 10540), (2108, 10380), (2480, 8823), (2595, 8432), (2635, 8304), (2768, 7905), (2941, 7440), (3162, 6920), (3460, 6324), (3720, 5882), (4080, 5363), (4152, 5270), (4216, 5190)]