21718501

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2677}}^1$

素因数の和:2764

約数の個数: 16

約数和(自身を含む): 26565760

約数和(自身を除く): 4847259

約数列:

[1, 7, 19, 61, 133, 427, 1159, 2677, 8113, 18739, 50863, 163297, 356041, 1143079, 3102643, 21718501]

約数ペア:

[(1, 21718501), (7, 3102643), (19, 1143079), (61, 356041), (133, 163297), (427, 50863), (1159, 18739), (2677, 8113)]