21720934

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14204186

約数列:

[1, 2, 17, 34, 43, 83, 86, 166, 179, 358, 731, 1411, 1462, 2822, 3043, 3569, 6086, 7138, 7697, 14857, 15394, 29714, 60673, 121346, 130849, 252569, 261698, 505138, 638851, 1277702, 10860467, 21720934]

約数ペア:

[(1, 21720934), (2, 10860467), (17, 1277702), (34, 638851), (43, 505138), (83, 261698), (86, 252569), (166, 130849), (179, 121346), (358, 60673), (731, 29714), (1411, 15394), (1462, 14857), (2822, 7697), (3043, 7138), (3569, 6086)]