21566563585

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{641}}^1$

素因数の和:994

約数の個数: 64

約数和(自身を含む): 30689777664

約数和(自身を除く): 9123214079

約数列:

[1, 5, 7, 35, 47, 113, 181, 235, 329, 565, 641, 791, 905, 1267, 1645, 3205, 3955, 4487, 5311, 6335, 8507, 20453, 22435, 26555, 30127, 37177, 42535, 59549, 72433, 102265, 116021, 143171, 150635, 185885, 210889, 297745, 362165, 507031, 580105, 715855, 812147, 961291, 1054445, 2535155, 3404351, 4060735, 4806455, 5452987, 6729037, 13110373, 17021755, 23830457, 27264935, 33645185, 38170909, 65551865, 91772611, 119152285, 190854545, 458863055, 616187531, 3080937655, 4313312717, 21566563585]

約数ペア:

[(1, 21566563585), (5, 4313312717), (7, 3080937655), (35, 616187531), (47, 458863055), (113, 190854545), (181, 119152285), (235, 91772611), (329, 65551865), (565, 38170909), (641, 33645185), (791, 27264935), (905, 23830457), (1267, 17021755), (1645, 13110373), (3205, 6729037), (3955, 5452987), (4487, 4806455), (5311, 4060735), (6335, 3404351), (8507, 2535155), (20453, 1054445), (22435, 961291), (26555, 812147), (30127, 715855), (37177, 580105), (42535, 507031), (59549, 362165), (72433, 297745), (102265, 210889), (116021, 185885), (143171, 150635)]