21159765

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{14249}}^1$

素因数の和:14274

約数の個数: 32

約数和(自身を含む): 41040000

約数和(自身を除く): 19880235

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 135, 165, 297, 495, 1485, 14249, 42747, 71245, 128241, 156739, 213735, 384723, 470217, 641205, 783695, 1410651, 1923615, 2351085, 4231953, 7053255, 21159765]

約数ペア:

[(1, 21159765), (3, 7053255), (5, 4231953), (9, 2351085), (11, 1923615), (15, 1410651), (27, 783695), (33, 641205), (45, 470217), (55, 384723), (99, 213735), (135, 156739), (165, 128241), (297, 71245), (495, 42747), (1485, 14249)]