1388891441

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{72229}}^1$

素因数の和:72344

約数の個数: 16

約数和(自身を含む): 1650311040

約数和(自身を除く): 261419599

約数列:

[1, 7, 41, 67, 287, 469, 2747, 19229, 72229, 505603, 2961389, 4839343, 20729723, 33875401, 198413063, 1388891441]

約数ペア:

[(1, 1388891441), (7, 198413063), (41, 33875401), (67, 20729723), (287, 4839343), (469, 2961389), (2747, 505603), (19229, 72229)]