20210571355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1459}}^1\times {\mathrm{4021}}^1$

素因数の和:5551

約数の個数: 32

約数和(自身を含む): 26635936320

約数和(自身を除く): 6425364965

約数列:

[1, 5, 13, 53, 65, 265, 689, 1459, 3445, 4021, 7295, 18967, 20105, 52273, 77327, 94835, 213113, 261365, 386635, 1005251, 1065565, 2770469, 5026255, 5866639, 13852345, 29333195, 76266307, 310931867, 381331535, 1554659335, 4042114271, 20210571355]

約数ペア:

[(1, 20210571355), (5, 4042114271), (13, 1554659335), (53, 381331535), (65, 310931867), (265, 76266307), (689, 29333195), (1459, 13852345), (3445, 5866639), (4021, 5026255), (7295, 2770469), (18967, 1065565), (20105, 1005251), (52273, 386635), (77327, 261365), (94835, 213113)]