221595975

素因数分解:

$3^2\times 5^2\times {\mathrm{877}}^1\times {\mathrm{1123}}^1$

素因数の和:2016

約数の個数: 36

約数和(自身を含む): 397709416

約数和(自身を除く): 176113441

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 877, 1123, 2631, 3369, 4385, 5615, 7893, 10107, 13155, 16845, 21925, 28075, 39465, 50535, 65775, 84225, 197325, 252675, 984871, 2954613, 4924355, 8863839, 14773065, 24621775, 44319195, 73865325, 221595975]

約数ペア:

[(1, 221595975), (3, 73865325), (5, 44319195), (9, 24621775), (15, 14773065), (25, 8863839), (45, 4924355), (75, 2954613), (225, 984871), (877, 252675), (1123, 197325), (2631, 84225), (3369, 65775), (4385, 50535), (5615, 39465), (7893, 28075), (10107, 21925), (13155, 16845)]