221747825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{1493}}^1$

素因数の和:1973

約数の個数: 24

約数和(自身を含む): 296965368

約数和(自身を除く): 75217543

約数列:

[1, 5, 13, 25, 65, 325, 457, 1493, 2285, 5941, 7465, 11425, 19409, 29705, 37325, 97045, 148525, 485225, 682301, 3411505, 8869913, 17057525, 44349565, 221747825]

約数ペア:

[(1, 221747825), (5, 44349565), (13, 17057525), (25, 8869913), (65, 3411505), (325, 682301), (457, 485225), (1493, 148525), (2285, 97045), (5941, 37325), (7465, 29705), (11425, 19409)]