21452450

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{5431}}^1$

素因数の和:5522

約数の個数: 24

約数和(自身を含む): 40414080

約数和(自身を除く): 18961630

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1975, 3950, 5431, 10862, 27155, 54310, 135775, 271550, 429049, 858098, 2145245, 4290490, 10726225, 21452450]

約数ペア:

[(1, 21452450), (2, 10726225), (5, 4290490), (10, 2145245), (25, 858098), (50, 429049), (79, 271550), (158, 135775), (395, 54310), (790, 27155), (1975, 10862), (3950, 5431)]