21857175

素因数分解:

$3^3\times 5^2\times {\mathrm{32381}}^1$

素因数の和:32400

約数の個数: 24

約数和(自身を含む): 40153680

約数和(自身を除く): 18296505

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 32381, 97143, 161905, 291429, 485715, 809525, 874287, 1457145, 2428575, 4371435, 7285725, 21857175]

約数ペア:

[(1, 21857175), (3, 7285725), (5, 4371435), (9, 2428575), (15, 1457145), (25, 874287), (27, 809525), (45, 485715), (75, 291429), (135, 161905), (225, 97143), (675, 32381)]