21450175

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1231}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 28873152

約数和(自身を除く): 7422977

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 1025, 1231, 3485, 6155, 17425, 20927, 30775, 50471, 104635, 252355, 523175, 858007, 1261775, 4290035, 21450175]

約数ペア:

[(1, 21450175), (5, 4290035), (17, 1261775), (25, 858007), (41, 523175), (85, 252355), (205, 104635), (425, 50471), (697, 30775), (1025, 20927), (1231, 17425), (3485, 6155)]