21351682

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{42197}}^1$

素因数の和:42233

約数の個数: 16

約数和(自身を含む): 36459072

約数和(自身を除く): 15107390

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 42197, 84394, 464167, 928334, 970531, 1941062, 10675841, 21351682]

約数ペア:

[(1, 21351682), (2, 10675841), (11, 1941062), (22, 970531), (23, 928334), (46, 464167), (253, 84394), (506, 42197)]