20181901818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{258742331}}^1$

素因数の和:258742349

約数の個数: 16

約数和(自身を含む): 43468711776

約数和(自身を除く): 23286809958

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 258742331, 517484662, 776226993, 1552453986, 3363650303, 6727300606, 10090950909, 20181901818]

約数ペア:

[(1, 20181901818), (2, 10090950909), (3, 6727300606), (6, 3363650303), (13, 1552453986), (26, 776226993), (39, 517484662), (78, 258742331)]