19907345

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 25923240

約数和(自身を除く): 6015895

約数列:

[1, 5, 19, 41, 95, 205, 269, 361, 779, 1345, 1805, 3895, 5111, 11029, 14801, 25555, 55145, 74005, 97109, 209551, 485545, 1047755, 3981469, 19907345]

約数ペア:

[(1, 19907345), (5, 3981469), (19, 1047755), (41, 485545), (95, 209551), (205, 97109), (269, 74005), (361, 55145), (779, 25555), (1345, 14801), (1805, 11029), (3895, 5111)]