21196540

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{113}}^2$

素因数の和:318

約数の個数: 36

約数和(自身を含む): 45451224

約数和(自身を除く): 24254684

約数列:

[1, 2, 4, 5, 10, 20, 83, 113, 166, 226, 332, 415, 452, 565, 830, 1130, 1660, 2260, 9379, 12769, 18758, 25538, 37516, 46895, 51076, 63845, 93790, 127690, 187580, 255380, 1059827, 2119654, 4239308, 5299135, 10598270, 21196540]

約数ペア:

[(1, 21196540), (2, 10598270), (4, 5299135), (5, 4239308), (10, 2119654), (20, 1059827), (83, 255380), (113, 187580), (166, 127690), (226, 93790), (332, 63845), (415, 51076), (452, 46895), (565, 37516), (830, 25538), (1130, 18758), (1660, 12769), (2260, 9379)]