18780422

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{1667}}^1$

素因数の和:1843

約数の個数: 16

約数和(自身を含む): 29063232

約数和(自身を除く): 10282810

約数列:

[1, 2, 43, 86, 131, 262, 1667, 3334, 5633, 11266, 71681, 143362, 218377, 436754, 9390211, 18780422]

約数ペア:

[(1, 18780422), (2, 9390211), (43, 436754), (86, 218377), (131, 143362), (262, 71681), (1667, 11266), (3334, 5633)]