3969975

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1231}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 6721792

約数和(自身を除く): 2751817

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 1231, 3225, 3693, 6155, 18465, 30775, 52933, 92325, 158799, 264665, 793995, 1323325, 3969975]

約数ペア:

[(1, 3969975), (3, 1323325), (5, 793995), (15, 264665), (25, 158799), (43, 92325), (75, 52933), (129, 30775), (215, 18465), (645, 6155), (1075, 3693), (1231, 3225)]