21164912

素因数分解:

$2^4\times {\mathrm{89}}^2\times {\mathrm{167}}^1$

素因数の和:353

約数の個数: 30

約数和(自身を含む): 41721288

約数和(自身を除く): 20556376

約数列:

[1, 2, 4, 8, 16, 89, 167, 178, 334, 356, 668, 712, 1336, 1424, 2672, 7921, 14863, 15842, 29726, 31684, 59452, 63368, 118904, 126736, 237808, 1322807, 2645614, 5291228, 10582456, 21164912]

約数ペア:

[(1, 21164912), (2, 10582456), (4, 5291228), (8, 2645614), (16, 1322807), (89, 237808), (167, 126736), (178, 118904), (334, 63368), (356, 59452), (668, 31684), (712, 29726), (1336, 15842), (1424, 14863), (2672, 7921)]