21747630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17681}}^1$

素因数の和:17732

約数の個数: 32

約数和(自身を含む): 53470368

約数和(自身を除く): 31722738

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230, 17681, 35362, 53043, 88405, 106086, 176810, 265215, 530430, 724921, 1449842, 2174763, 3624605, 4349526, 7249210, 10873815, 21747630]

約数ペア:

[(1, 21747630), (2, 10873815), (3, 7249210), (5, 4349526), (6, 3624605), (10, 2174763), (15, 1449842), (30, 724921), (41, 530430), (82, 265215), (123, 176810), (205, 106086), (246, 88405), (410, 53043), (615, 35362), (1230, 17681)]