21729230

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127819}}^1$

素因数の和:127843

約数の個数: 16

約数和(自身を含む): 41413680

約数和(自身を除く): 19684450

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 127819, 255638, 639095, 1278190, 2172923, 4345846, 10864615, 21729230]

約数ペア:

[(1, 21729230), (2, 10864615), (5, 4345846), (10, 2172923), (17, 1278190), (34, 639095), (85, 255638), (170, 127819)]