21518580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 41985420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 83, 87, 116, 145, 149, 166, 174, 249, 290, 298, 332, 348, 415, 435, 447, 498, 580, 596, 745, 830, 870, 894, 996, 1245, 1490, 1660, 1740, 1788, 2235, 2407, 2490, 2980, 4321, 4470, 4814, 4980, 7221, 8642, 8940, 9628, 12035, 12367, 12963, 14442, 17284, 21605, 24070, 24734, 25926, 28884, 36105, 37101, 43210, 48140, 49468, 51852, 61835, 64815, 72210, 74202, 86420, 123670, 129630, 144420, 148404, 185505, 247340, 259260, 358643, 371010, 717286, 742020, 1075929, 1434572, 1793215, 2151858, 3586430, 4303716, 5379645, 7172860, 10759290, 21518580]

約数ペア:

[(1, 21518580), (2, 10759290), (3, 7172860), (4, 5379645), (5, 4303716), (6, 3586430), (10, 2151858), (12, 1793215), (15, 1434572), (20, 1075929), (29, 742020), (30, 717286), (58, 371010), (60, 358643), (83, 259260), (87, 247340), (116, 185505), (145, 148404), (149, 144420), (166, 129630), (174, 123670), (249, 86420), (290, 74202), (298, 72210), (332, 64815), (348, 61835), (415, 51852), (435, 49468), (447, 48140), (498, 43210), (580, 37101), (596, 36105), (745, 28884), (830, 25926), (870, 24734), (894, 24070), (996, 21605), (1245, 17284), (1490, 14442), (1660, 12963), (1740, 12367), (1788, 12035), (2235, 9628), (2407, 8940), (2490, 8642), (2980, 7221), (4321, 4980), (4470, 4814)]