21063860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1579}}^1$

素因数の和:1640

約数の個数: 48

約数和(自身を含む): 47779200

約数和(自身を除く): 26715340

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 145, 230, 290, 460, 580, 667, 1334, 1579, 2668, 3158, 3335, 6316, 6670, 7895, 13340, 15790, 31580, 36317, 45791, 72634, 91582, 145268, 181585, 183164, 228955, 363170, 457910, 726340, 915820, 1053193, 2106386, 4212772, 5265965, 10531930, 21063860]

約数ペア:

[(1, 21063860), (2, 10531930), (4, 5265965), (5, 4212772), (10, 2106386), (20, 1053193), (23, 915820), (29, 726340), (46, 457910), (58, 363170), (92, 228955), (115, 183164), (116, 181585), (145, 145268), (230, 91582), (290, 72634), (460, 45791), (580, 36317), (667, 31580), (1334, 15790), (1579, 13340), (2668, 7895), (3158, 6670), (3335, 6316)]