21939615

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9199}}^1$

素因数の和:9263

約数の個数: 24

約数和(自身を含む): 38750400

約数和(自身を除く): 16810785

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 477, 795, 2385, 9199, 27597, 45995, 82791, 137985, 413955, 487547, 1462641, 2437735, 4387923, 7313205, 21939615]

約数ペア:

[(1, 21939615), (3, 7313205), (5, 4387923), (9, 2437735), (15, 1462641), (45, 487547), (53, 413955), (159, 137985), (265, 82791), (477, 45995), (795, 27597), (2385, 9199)]