19981106

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1\times {\mathrm{751}}^1$

素因数の和:1057

約数の個数: 16

約数和(自身を含む): 30699648

約数和(自身を除く): 10718542

約数列:

[1, 2, 53, 106, 251, 502, 751, 1502, 13303, 26606, 39803, 79606, 188501, 377002, 9990553, 19981106]

約数ペア:

[(1, 19981106), (2, 9990553), (53, 377002), (106, 188501), (251, 79606), (502, 39803), (751, 26606), (1502, 13303)]