21019852

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39511}}^1$

素因数の和:39541

約数の個数: 24

約数和(自身を含む): 44253440

約数和(自身を除く): 23233588

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39511, 79022, 158044, 276577, 553154, 750709, 1106308, 1501418, 3002836, 5254963, 10509926, 21019852]

約数ペア:

[(1, 21019852), (2, 10509926), (4, 5254963), (7, 3002836), (14, 1501418), (19, 1106308), (28, 750709), (38, 553154), (76, 276577), (133, 158044), (266, 79022), (532, 39511)]