217216945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{171713}}^1$

素因数の和:171752

約数の個数: 16

約数和(自身を含む): 296721792

約数和(自身を除く): 79504847

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 171713, 858565, 1888843, 3949399, 9444215, 19746995, 43443389, 217216945]

約数ペア:

[(1, 217216945), (5, 43443389), (11, 19746995), (23, 9444215), (55, 3949399), (115, 1888843), (253, 858565), (1265, 171713)]