21352910

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 18045490

約数列:

[1, 2, 5, 10, 79, 151, 158, 179, 302, 358, 395, 755, 790, 895, 1510, 1790, 11929, 14141, 23858, 27029, 28282, 54058, 59645, 70705, 119290, 135145, 141410, 270290, 2135291, 4270582, 10676455, 21352910]

約数ペア:

[(1, 21352910), (2, 10676455), (5, 4270582), (10, 2135291), (79, 270290), (151, 141410), (158, 135145), (179, 119290), (302, 70705), (358, 59645), (395, 54058), (755, 28282), (790, 27029), (895, 23858), (1510, 14141), (1790, 11929)]