21413360

素因数分解:

$2^4\times 5^1\times {\mathrm{267667}}^1$

素因数の和:267680

約数の個数: 20

約数和(自身を含む): 49786248

約数和(自身を除く): 28372888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 267667, 535334, 1070668, 1338335, 2141336, 2676670, 4282672, 5353340, 10706680, 21413360]

約数ペア:

[(1, 21413360), (2, 10706680), (4, 5353340), (5, 4282672), (8, 2676670), (10, 2141336), (16, 1338335), (20, 1070668), (40, 535334), (80, 267667)]