21738675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{881}}^1$

素因数の和:948

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 20258637

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 47, 75, 105, 141, 175, 235, 329, 525, 705, 881, 987, 1175, 1645, 2643, 3525, 4405, 4935, 6167, 8225, 13215, 18501, 22025, 24675, 30835, 41407, 66075, 92505, 124221, 154175, 207035, 289849, 462525, 621105, 869547, 1035175, 1449245, 3105525, 4347735, 7246225, 21738675]

約数ペア:

[(1, 21738675), (3, 7246225), (5, 4347735), (7, 3105525), (15, 1449245), (21, 1035175), (25, 869547), (35, 621105), (47, 462525), (75, 289849), (105, 207035), (141, 154175), (175, 124221), (235, 92505), (329, 66075), (525, 41407), (705, 30835), (881, 24675), (987, 22025), (1175, 18501), (1645, 13215), (2643, 8225), (3525, 6167), (4405, 4935)]