20865642

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{4643}}^1$

素因数の和:4762

約数の個数: 32

約数和(自身を含む): 48148992

約数和(自身を除く): 27283350

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 107, 214, 321, 642, 749, 1498, 2247, 4494, 4643, 9286, 13929, 27858, 32501, 65002, 97503, 195006, 496801, 993602, 1490403, 2980806, 3477607, 6955214, 10432821, 20865642]

約数ペア:

[(1, 20865642), (2, 10432821), (3, 6955214), (6, 3477607), (7, 2980806), (14, 1490403), (21, 993602), (42, 496801), (107, 195006), (214, 97503), (321, 65002), (642, 32501), (749, 27858), (1498, 13929), (2247, 9286), (4494, 4643)]