21160125

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{2687}}^1$

素因数の和:2715

約数の個数: 48

約数和(自身を含む): 43610112

約数和(自身を除く): 22449987

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2625, 2687, 7875, 8061, 13435, 18809, 24183, 40305, 56427, 67175, 94045, 120915, 169281, 201525, 282135, 335875, 470225, 604575, 846405, 1007625, 1410675, 2351125, 3022875, 4232025, 7053375, 21160125]

約数ペア:

[(1, 21160125), (3, 7053375), (5, 4232025), (7, 3022875), (9, 2351125), (15, 1410675), (21, 1007625), (25, 846405), (35, 604575), (45, 470225), (63, 335875), (75, 282135), (105, 201525), (125, 169281), (175, 120915), (225, 94045), (315, 67175), (375, 56427), (525, 40305), (875, 24183), (1125, 18809), (1575, 13435), (2625, 8061), (2687, 7875)]