21637563025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3916301}}^1$

素因数の和:3916341

約数の個数: 24

約数和(自身を含む): 30594151224

約数和(自身を除く): 8956588199

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5525, 3916301, 19581505, 50911913, 66577117, 97907525, 254559565, 332885585, 865502521, 1272797825, 1664427925, 4327512605, 21637563025]

約数ペア:

[(1, 21637563025), (5, 4327512605), (13, 1664427925), (17, 1272797825), (25, 865502521), (65, 332885585), (85, 254559565), (221, 97907525), (325, 66577117), (425, 50911913), (1105, 19581505), (5525, 3916301)]