21721216

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{15427}}^1$

素因数の和:15452

約数の個数: 32

約数和(自身を含む): 47209680

約数和(自身を除く): 25488464

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 352, 704, 1408, 15427, 30854, 61708, 123416, 169697, 246832, 339394, 493664, 678788, 987328, 1357576, 1974656, 2715152, 5430304, 10860608, 21721216]

約数ペア:

[(1, 21721216), (2, 10860608), (4, 5430304), (8, 2715152), (11, 1974656), (16, 1357576), (22, 987328), (32, 678788), (44, 493664), (64, 339394), (88, 246832), (128, 169697), (176, 123416), (352, 61708), (704, 30854), (1408, 15427)]