21057152

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{9677}}^1$

素因数の和:9708

約数の個数: 32

約数和(自身を含む): 44422020

約数和(自身を除く): 23364868

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 1088, 2176, 9677, 19354, 38708, 77416, 154832, 164509, 309664, 329018, 619328, 658036, 1238656, 1316072, 2632144, 5264288, 10528576, 21057152]

約数ペア:

[(1, 21057152), (2, 10528576), (4, 5264288), (8, 2632144), (16, 1316072), (17, 1238656), (32, 658036), (34, 619328), (64, 329018), (68, 309664), (128, 164509), (136, 154832), (272, 77416), (544, 38708), (1088, 19354), (2176, 9677)]