21903190

素因数分解:

$2^1\times 5^1\times {\mathrm{1471}}^1\times {\mathrm{1489}}^1$

素因数の和:2967

約数の個数: 16

約数和(自身を含む): 39479040

約数和(自身を除く): 17575850

約数列:

[1, 2, 5, 10, 1471, 1489, 2942, 2978, 7355, 7445, 14710, 14890, 2190319, 4380638, 10951595, 21903190]

約数ペア:

[(1, 21903190), (2, 10951595), (5, 4380638), (10, 2190319), (1471, 14890), (1489, 14710), (2942, 7445), (2978, 7355)]