21503416

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{244357}}^1$

素因数の和:244374

約数の個数: 16

約数和(自身を含む): 43984440

約数和(自身を除く): 22481024

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 244357, 488714, 977428, 1954856, 2687927, 5375854, 10751708, 21503416]

約数ペア:

[(1, 21503416), (2, 10751708), (4, 5375854), (8, 2687927), (11, 1954856), (22, 977428), (44, 488714), (88, 244357)]