21494075

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1289}}^1$

素因数の和:1351

約数の個数: 24

約数和(自身を含む): 28792800

約数和(自身を除く): 7298725

約数列:

[1, 5, 23, 25, 29, 115, 145, 575, 667, 725, 1289, 3335, 6445, 16675, 29647, 32225, 37381, 148235, 186905, 741175, 859763, 934525, 4298815, 21494075]

約数ペア:

[(1, 21494075), (5, 4298815), (23, 934525), (25, 859763), (29, 741175), (115, 186905), (145, 148235), (575, 37381), (667, 32225), (725, 29647), (1289, 16675), (3335, 6445)]