21352144

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:340

約数の個数: 60

約数和(自身を含む): 46754820

約数和(自身を除く): 25402676

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 121, 164, 176, 242, 269, 328, 451, 484, 538, 656, 902, 968, 1076, 1804, 1936, 2152, 2959, 3608, 4304, 4961, 5918, 7216, 9922, 11029, 11836, 19844, 22058, 23672, 32549, 39688, 44116, 47344, 65098, 79376, 88232, 121319, 130196, 176464, 242638, 260392, 485276, 520784, 970552, 1334509, 1941104, 2669018, 5338036, 10676072, 21352144]

約数ペア:

[(1, 21352144), (2, 10676072), (4, 5338036), (8, 2669018), (11, 1941104), (16, 1334509), (22, 970552), (41, 520784), (44, 485276), (82, 260392), (88, 242638), (121, 176464), (164, 130196), (176, 121319), (242, 88232), (269, 79376), (328, 65098), (451, 47344), (484, 44116), (538, 39688), (656, 32549), (902, 23672), (968, 22058), (1076, 19844), (1804, 11836), (1936, 11029), (2152, 9922), (2959, 7216), (3608, 5918), (4304, 4961)]