21898580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{9049}}^1$

素因数の和:9080

約数の個数: 36

約数和(自身を含む): 50553300

約数和(自身を除く): 28654720

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 9049, 18098, 36196, 45245, 90490, 99539, 180980, 199078, 398156, 497695, 995390, 1094929, 1990780, 2189858, 4379716, 5474645, 10949290, 21898580]

約数ペア:

[(1, 21898580), (2, 10949290), (4, 5474645), (5, 4379716), (10, 2189858), (11, 1990780), (20, 1094929), (22, 995390), (44, 497695), (55, 398156), (110, 199078), (121, 180980), (220, 99539), (242, 90490), (484, 45245), (605, 36196), (1210, 18098), (2420, 9049)]