21510560

素因数分解:

$2^5\times 5^1\times {\mathrm{233}}^1\times {\mathrm{577}}^1$

素因数の和:825

約数の個数: 48

約数和(自身を含む): 51125256

約数和(自身を除く): 29614696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 233, 466, 577, 932, 1154, 1165, 1864, 2308, 2330, 2885, 3728, 4616, 4660, 5770, 7456, 9232, 9320, 11540, 18464, 18640, 23080, 37280, 46160, 92320, 134441, 268882, 537764, 672205, 1075528, 1344410, 2151056, 2688820, 4302112, 5377640, 10755280, 21510560]

約数ペア:

[(1, 21510560), (2, 10755280), (4, 5377640), (5, 4302112), (8, 2688820), (10, 2151056), (16, 1344410), (20, 1075528), (32, 672205), (40, 537764), (80, 268882), (160, 134441), (233, 92320), (466, 46160), (577, 37280), (932, 23080), (1154, 18640), (1165, 18464), (1864, 11540), (2308, 9320), (2330, 9232), (2885, 7456), (3728, 5770), (4616, 4660)]