21430245

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{19571}}^1$

素因数の和:19652

約数の個数: 16

約数和(自身を含む): 34759872

約数和(自身を除く): 13329627

約数列:

[1, 3, 5, 15, 73, 219, 365, 1095, 19571, 58713, 97855, 293565, 1428683, 4286049, 7143415, 21430245]

約数ペア:

[(1, 21430245), (3, 7143415), (5, 4286049), (15, 1428683), (73, 293565), (219, 97855), (365, 58713), (1095, 19571)]