21967725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22531}}^1$

素因数の和:22557

約数の個数: 24

約数和(自身を含む): 39115552

約数和(自身を除く): 17147827

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 22531, 67593, 112655, 292903, 337965, 563275, 878709, 1464515, 1689825, 4393545, 7322575, 21967725]

約数ペア:

[(1, 21967725), (3, 7322575), (5, 4393545), (13, 1689825), (15, 1464515), (25, 878709), (39, 563275), (65, 337965), (75, 292903), (195, 112655), (325, 67593), (975, 22531)]