20541675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3557}}^1$

素因数の和:3588

約数の個数: 48

約数和(自身を含む): 42354432

約数和(自身を除く): 21812757

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1925, 3557, 5775, 10671, 17785, 24899, 39127, 53355, 74697, 88925, 117381, 124495, 195635, 266775, 273889, 373485, 586905, 622475, 821667, 978175, 1369445, 1867425, 2934525, 4108335, 6847225, 20541675]

約数ペア:

[(1, 20541675), (3, 6847225), (5, 4108335), (7, 2934525), (11, 1867425), (15, 1369445), (21, 978175), (25, 821667), (33, 622475), (35, 586905), (55, 373485), (75, 273889), (77, 266775), (105, 195635), (165, 124495), (175, 117381), (231, 88925), (275, 74697), (385, 53355), (525, 39127), (825, 24899), (1155, 17785), (1925, 10671), (3557, 5775)]