21650364

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9859}}^1$

素因数の和:9930

約数の個数: 36

約数和(自身を含む): 55630120

約数和(自身を除く): 33979756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9859, 19718, 29577, 39436, 59154, 88731, 118308, 177462, 354924, 601399, 1202798, 1804197, 2405596, 3608394, 5412591, 7216788, 10825182, 21650364]

約数ペア:

[(1, 21650364), (2, 10825182), (3, 7216788), (4, 5412591), (6, 3608394), (9, 2405596), (12, 1804197), (18, 1202798), (36, 601399), (61, 354924), (122, 177462), (183, 118308), (244, 88731), (366, 59154), (549, 39436), (732, 29577), (1098, 19718), (2196, 9859)]