20972856

素因数分解:

$2^3\times 3^1\times {\mathrm{107}}^1\times {\mathrm{8167}}^1$

素因数の和:8283

約数の個数: 32

約数和(自身を含む): 52928640

約数和(自身を除く): 31955784

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 107, 214, 321, 428, 642, 856, 1284, 2568, 8167, 16334, 24501, 32668, 49002, 65336, 98004, 196008, 873869, 1747738, 2621607, 3495476, 5243214, 6990952, 10486428, 20972856]

約数ペア:

[(1, 20972856), (2, 10486428), (3, 6990952), (4, 5243214), (6, 3495476), (8, 2621607), (12, 1747738), (24, 873869), (107, 196008), (214, 98004), (321, 65336), (428, 49002), (642, 32668), (856, 24501), (1284, 16334), (2568, 8167)]