19975118

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{12821}}^1$

素因数の和:12883

約数の個数: 16

約数和(自身を含む): 32311440

約数和(自身を除く): 12336322

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 12821, 25642, 243599, 487198, 525661, 1051322, 9987559, 19975118]

約数ペア:

[(1, 19975118), (2, 9987559), (19, 1051322), (38, 525661), (41, 487198), (82, 243599), (779, 25642), (1558, 12821)]