21145485

素因数分解:

$3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4447}}^1$

素因数の和:4772

約数の個数: 16

約数和(自身を含む): 33947136

約数和(自身を除く): 12801651

約数列:

[1, 3, 5, 15, 317, 951, 1585, 4447, 4755, 13341, 22235, 66705, 1409699, 4229097, 7048495, 21145485]

約数ペア:

[(1, 21145485), (3, 7048495), (5, 4229097), (15, 1409699), (317, 66705), (951, 22235), (1585, 13341), (4447, 4755)]