21515806

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{1291}}^1$

素因数の和:1947

約数の個数: 16

約数和(自身を含む): 34837488

約数和(自身を除く): 13321682

約数列:

[1, 2, 13, 26, 641, 1282, 1291, 2582, 8333, 16666, 16783, 33566, 827531, 1655062, 10757903, 21515806]

約数ペア:

[(1, 21515806), (2, 10757903), (13, 1655062), (26, 827531), (641, 33566), (1282, 16783), (1291, 16666), (2582, 8333)]