20512114917

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3391}}^1\times {\mathrm{4057}}^1$

素因数の和:7529

約数の個数: 32

約数和(自身を含む): 31713951744

約数和(自身を除く): 11201836827

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 3391, 4057, 10173, 12171, 23737, 28399, 71211, 85197, 240761, 288047, 722283, 864141, 1685327, 2016329, 5055981, 6048987, 13757287, 41271861, 96301009, 288903027, 976767377, 2930302131, 6837371639, 20512114917]

約数ペア:

[(1, 20512114917), (3, 6837371639), (7, 2930302131), (21, 976767377), (71, 288903027), (213, 96301009), (497, 41271861), (1491, 13757287), (3391, 6048987), (4057, 5055981), (10173, 2016329), (12171, 1685327), (23737, 864141), (28399, 722283), (71211, 288047), (85197, 240761)]