221245225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{12697}}^1$

素因数の和:12765

約数の個数: 24

約数和(自身を含む): 297590328

約数和(自身を除く): 76345103

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 1025, 3485, 12697, 17425, 63485, 215849, 317425, 520577, 1079245, 2602885, 5396225, 8849809, 13014425, 44249045, 221245225]

約数ペア:

[(1, 221245225), (5, 44249045), (17, 13014425), (25, 8849809), (41, 5396225), (85, 2602885), (205, 1079245), (425, 520577), (697, 317425), (1025, 215849), (3485, 63485), (12697, 17425)]