21048335

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2377}}^1$

素因数の和:2423

約数の個数: 32

約数和(自身を含む): 32873472

約数和(自身を除く): 11825137

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 161, 253, 385, 805, 1265, 1771, 2377, 8855, 11885, 16639, 26147, 54671, 83195, 130735, 183029, 273355, 382697, 601381, 915145, 1913485, 3006905, 4209667, 21048335]

約数ペア:

[(1, 21048335), (5, 4209667), (7, 3006905), (11, 1913485), (23, 915145), (35, 601381), (55, 382697), (77, 273355), (115, 183029), (161, 130735), (253, 83195), (385, 54671), (805, 26147), (1265, 16639), (1771, 11885), (2377, 8855)]