21532540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63331}}^1$

素因数の和:63357

約数の個数: 24

約数和(自身を含む): 47878992

約数和(自身を除く): 26346452

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63331, 126662, 253324, 316655, 633310, 1076627, 1266620, 2153254, 4306508, 5383135, 10766270, 21532540]

約数ペア:

[(1, 21532540), (2, 10766270), (4, 5383135), (5, 4306508), (10, 2153254), (17, 1266620), (20, 1076627), (34, 633310), (68, 316655), (85, 253324), (170, 126662), (340, 63331)]