638520058

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{1109}}^1\times {\mathrm{26171}}^1$

素因数の和:27293

約数の個数: 16

約数和(自身を含む): 1045833120

約数和(自身を除く): 407313062

約数列:

[1, 2, 11, 22, 1109, 2218, 12199, 24398, 26171, 52342, 287881, 575762, 29023639, 58047278, 319260029, 638520058]

約数ペア:

[(1, 638520058), (2, 319260029), (11, 58047278), (22, 29023639), (1109, 575762), (2218, 287881), (12199, 52342), (24398, 26171)]