21808312

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 41958000

約数和(自身を除く): 20149688

約数列:

[1, 2, 4, 8, 73, 107, 146, 214, 292, 349, 428, 584, 698, 856, 1396, 2792, 7811, 15622, 25477, 31244, 37343, 50954, 62488, 74686, 101908, 149372, 203816, 298744, 2726039, 5452078, 10904156, 21808312]

約数ペア:

[(1, 21808312), (2, 10904156), (4, 5452078), (8, 2726039), (73, 298744), (107, 203816), (146, 149372), (214, 101908), (292, 74686), (349, 62488), (428, 50954), (584, 37343), (698, 31244), (856, 25477), (1396, 15622), (2792, 7811)]