21273080

素因数分解:

$2^3\times 5^1\times {\mathrm{531827}}^1$

素因数の和:531838

約数の個数: 16

約数和(自身を含む): 47864520

約数和(自身を除く): 26591440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 531827, 1063654, 2127308, 2659135, 4254616, 5318270, 10636540, 21273080]

約数ペア:

[(1, 21273080), (2, 10636540), (4, 5318270), (5, 4254616), (8, 2659135), (10, 2127308), (20, 1063654), (40, 531827)]