21232900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16333}}^1$

素因数の和:16360

約数の個数: 36

約数和(自身を含む): 49622692

約数和(自身を除く): 28389792

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16333, 32666, 65332, 81665, 163330, 212329, 326660, 408325, 424658, 816650, 849316, 1061645, 1633300, 2123290, 4246580, 5308225, 10616450, 21232900]

約数ペア:

[(1, 21232900), (2, 10616450), (4, 5308225), (5, 4246580), (10, 2123290), (13, 1633300), (20, 1061645), (25, 849316), (26, 816650), (50, 424658), (52, 408325), (65, 326660), (100, 212329), (130, 163330), (260, 81665), (325, 65332), (650, 32666), (1300, 16333)]