21803730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1511}}^1$

素因数の和:1571

約数の個数: 64

約数和(自身を含む): 57915648

約数和(自身を除く): 36111918

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1443, 1511, 2405, 2886, 3022, 4533, 4810, 7215, 7555, 9066, 14430, 15110, 19643, 22665, 39286, 45330, 55907, 58929, 98215, 111814, 117858, 167721, 196430, 279535, 294645, 335442, 559070, 589290, 726791, 838605, 1453582, 1677210, 2180373, 3633955, 4360746, 7267910, 10901865, 21803730]

約数ペア:

[(1, 21803730), (2, 10901865), (3, 7267910), (5, 4360746), (6, 3633955), (10, 2180373), (13, 1677210), (15, 1453582), (26, 838605), (30, 726791), (37, 589290), (39, 559070), (65, 335442), (74, 294645), (78, 279535), (111, 196430), (130, 167721), (185, 117858), (195, 111814), (222, 98215), (370, 58929), (390, 55907), (481, 45330), (555, 39286), (962, 22665), (1110, 19643), (1443, 15110), (1511, 14430), (2405, 9066), (2886, 7555), (3022, 7215), (4533, 4810)]