21630564

素因数分解:

$2^2\times 3^4\times {\mathrm{101}}^1\times {\mathrm{661}}^1$

素因数の和:778

約数の個数: 60

約数和(自身を含む): 57192828

約数和(自身を除く): 35562264

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 101, 108, 162, 202, 303, 324, 404, 606, 661, 909, 1212, 1322, 1818, 1983, 2644, 2727, 3636, 3966, 5454, 5949, 7932, 8181, 10908, 11898, 16362, 17847, 23796, 32724, 35694, 53541, 66761, 71388, 107082, 133522, 200283, 214164, 267044, 400566, 600849, 801132, 1201698, 1802547, 2403396, 3605094, 5407641, 7210188, 10815282, 21630564]

約数ペア:

[(1, 21630564), (2, 10815282), (3, 7210188), (4, 5407641), (6, 3605094), (9, 2403396), (12, 1802547), (18, 1201698), (27, 801132), (36, 600849), (54, 400566), (81, 267044), (101, 214164), (108, 200283), (162, 133522), (202, 107082), (303, 71388), (324, 66761), (404, 53541), (606, 35694), (661, 32724), (909, 23796), (1212, 17847), (1322, 16362), (1818, 11898), (1983, 10908), (2644, 8181), (2727, 7932), (3636, 5949), (3966, 5454)]