21575090

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 39948336

約数和(自身を除く): 18373246

約数列:

[1, 2, 5, 10, 61, 113, 122, 226, 305, 313, 565, 610, 626, 1130, 1565, 3130, 6893, 13786, 19093, 34465, 35369, 38186, 68930, 70738, 95465, 176845, 190930, 353690, 2157509, 4315018, 10787545, 21575090]

約数ペア:

[(1, 21575090), (2, 10787545), (5, 4315018), (10, 2157509), (61, 353690), (113, 190930), (122, 176845), (226, 95465), (305, 70738), (313, 68930), (565, 38186), (610, 35369), (626, 34465), (1130, 19093), (1565, 13786), (3130, 6893)]