20961674

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{9043}}^1$

素因数の和:9125

約数の個数: 16

約数和(自身を含む): 33643680

約数和(自身を除く): 12682006

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 9043, 18086, 171817, 343634, 551623, 1103246, 10480837, 20961674]

約数ペア:

[(1, 20961674), (2, 10480837), (19, 1103246), (38, 551623), (61, 343634), (122, 171817), (1159, 18086), (2318, 9043)]