19972711

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1583}}^1$

素因数の和:1662

約数の個数: 16

約数和(自身を含む): 23113728

約数和(自身を除く): 3141017

約数列:

[1, 11, 31, 37, 341, 407, 1147, 1583, 12617, 17413, 49073, 58571, 539803, 644281, 1815701, 19972711]

約数ペア:

[(1, 19972711), (11, 1815701), (31, 644281), (37, 539803), (341, 58571), (407, 49073), (1147, 17413), (1583, 12617)]