21158192

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{503}}^1$

素因数の和:761

約数の個数: 40

約数和(自身を含む): 44997120

約数和(自身を除く): 23838928

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 239, 478, 503, 956, 1006, 1912, 2012, 2629, 3824, 4024, 5258, 5533, 8048, 10516, 11066, 21032, 22132, 42064, 44264, 88528, 120217, 240434, 480868, 961736, 1322387, 1923472, 2644774, 5289548, 10579096, 21158192]

約数ペア:

[(1, 21158192), (2, 10579096), (4, 5289548), (8, 2644774), (11, 1923472), (16, 1322387), (22, 961736), (44, 480868), (88, 240434), (176, 120217), (239, 88528), (478, 44264), (503, 42064), (956, 22132), (1006, 21032), (1912, 11066), (2012, 10516), (2629, 8048), (3824, 5533), (4024, 5258)]