21511425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22063}}^1$

素因数の和:22089

約数の個数: 24

約数和(自身を含む): 38303104

約数和(自身を除く): 16791679

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 22063, 66189, 110315, 286819, 330945, 551575, 860457, 1434095, 1654725, 4302285, 7170475, 21511425]

約数ペア:

[(1, 21511425), (3, 7170475), (5, 4302285), (13, 1654725), (15, 1434095), (25, 860457), (39, 551575), (65, 330945), (75, 286819), (195, 110315), (325, 66189), (975, 22063)]