21231925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5939}}^1$

素因数の和:5973

約数の個数: 24

約数和(自身を含む): 30935520

約数和(自身を除く): 9703595

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 5939, 29695, 65329, 77207, 148475, 326645, 386035, 849277, 1633225, 1930175, 4246385, 21231925]

約数ペア:

[(1, 21231925), (5, 4246385), (11, 1930175), (13, 1633225), (25, 849277), (55, 386035), (65, 326645), (143, 148475), (275, 77207), (325, 65329), (715, 29695), (3575, 5939)]