15420153

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5521}}^1$

素因数の和:5557

約数の個数: 24

約数和(自身を含む): 25180320

約数和(自身を除く): 9760167

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 5521, 16563, 38647, 104899, 115941, 270529, 314697, 734293, 811587, 2202879, 5140051, 15420153]

約数ペア:

[(1, 15420153), (3, 5140051), (7, 2202879), (19, 811587), (21, 734293), (49, 314697), (57, 270529), (133, 115941), (147, 104899), (399, 38647), (931, 16563), (2793, 5521)]