678998538

素因数分解:

$2^1\times 3^4\times {\mathrm{4191349}}^1$

素因数の和:4191363

約数の個数: 20

約数和(自身を含む): 1521460050

約数和(自身を除く): 842461512

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 4191349, 8382698, 12574047, 25148094, 37722141, 75444282, 113166423, 226332846, 339499269, 678998538]

約数ペア:

[(1, 678998538), (2, 339499269), (3, 226332846), (6, 113166423), (9, 75444282), (18, 37722141), (27, 25148094), (54, 12574047), (81, 8382698), (162, 4191349)]