21724040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41777}}^1$

素因数の和:41801

約数の個数: 32

約数和(自身を含む): 52640280

約数和(自身を除く): 30916240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41777, 83554, 167108, 208885, 334216, 417770, 543101, 835540, 1086202, 1671080, 2172404, 2715505, 4344808, 5431010, 10862020, 21724040]

約数ペア:

[(1, 21724040), (2, 10862020), (4, 5431010), (5, 4344808), (8, 2715505), (10, 2172404), (13, 1671080), (20, 1086202), (26, 835540), (40, 543101), (52, 417770), (65, 334216), (104, 208885), (130, 167108), (260, 83554), (520, 41777)]