219612458

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{541}}^1\times {\mathrm{1201}}^1$

素因数の和:1770

約数の個数: 24

約数和(自身を含む): 357664716

約数和(自身を除く): 138052258

約数列:

[1, 2, 13, 26, 169, 338, 541, 1082, 1201, 2402, 7033, 14066, 15613, 31226, 91429, 182858, 202969, 405938, 649741, 1299482, 8446633, 16893266, 109806229, 219612458]

約数ペア:

[(1, 219612458), (2, 109806229), (13, 16893266), (26, 8446633), (169, 1299482), (338, 649741), (541, 405938), (1082, 202969), (1201, 182858), (2402, 91429), (7033, 31226), (14066, 15613)]