21743080

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{881}}^1$

素因数の和:1509

約数の個数: 32

約数和(自身を含む): 49056840

約数和(自身を除く): 27313760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 881, 1234, 1762, 2468, 3085, 3524, 4405, 4936, 6170, 7048, 8810, 12340, 17620, 24680, 35240, 543577, 1087154, 2174308, 2717885, 4348616, 5435770, 10871540, 21743080]

約数ペア:

[(1, 21743080), (2, 10871540), (4, 5435770), (5, 4348616), (8, 2717885), (10, 2174308), (20, 1087154), (40, 543577), (617, 35240), (881, 24680), (1234, 17620), (1762, 12340), (2468, 8810), (3085, 7048), (3524, 6170), (4405, 4936)]