16720497

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 25022088

約数和(自身を除く): 8301591

約数列:

[1, 3, 9, 41, 113, 123, 339, 369, 401, 1017, 1203, 3609, 4633, 13899, 16441, 41697, 45313, 49323, 135939, 147969, 407817, 1857833, 5573499, 16720497]

約数ペア:

[(1, 16720497), (3, 5573499), (9, 1857833), (41, 407817), (113, 147969), (123, 135939), (339, 49323), (369, 45313), (401, 41697), (1017, 16441), (1203, 13899), (3609, 4633)]