21859478

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{991}}^1$

素因数の和:1303

約数の個数: 16

約数和(自身を含む): 33747840

約数和(自身を除く): 11888362

約数列:

[1, 2, 41, 82, 269, 538, 991, 1982, 11029, 22058, 40631, 81262, 266579, 533158, 10929739, 21859478]

約数ペア:

[(1, 21859478), (2, 10929739), (41, 533158), (82, 266579), (269, 81262), (538, 40631), (991, 22058), (1982, 11029)]