21582760

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{797}}^1$

素因数の和:1485

約数の個数: 32

約数和(自身を含む): 48693960

約数和(自身を除く): 27111200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 797, 1354, 1594, 2708, 3188, 3385, 3985, 5416, 6376, 6770, 7970, 13540, 15940, 27080, 31880, 539569, 1079138, 2158276, 2697845, 4316552, 5395690, 10791380, 21582760]

約数ペア:

[(1, 21582760), (2, 10791380), (4, 5395690), (5, 4316552), (8, 2697845), (10, 2158276), (20, 1079138), (40, 539569), (677, 31880), (797, 27080), (1354, 15940), (1594, 13540), (2708, 7970), (3188, 6770), (3385, 6376), (3985, 5416)]