18945396

素因数分解:

$2^2\times 3^2\times {\mathrm{641}}^1\times {\mathrm{821}}^1$

素因数の和:1472

約数の個数: 36

約数和(自身を含む): 48022884

約数和(自身を除く): 29077488

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 641, 821, 1282, 1642, 1923, 2463, 2564, 3284, 3846, 4926, 5769, 7389, 7692, 9852, 11538, 14778, 23076, 29556, 526261, 1052522, 1578783, 2105044, 3157566, 4736349, 6315132, 9472698, 18945396]

約数ペア:

[(1, 18945396), (2, 9472698), (3, 6315132), (4, 4736349), (6, 3157566), (9, 2105044), (12, 1578783), (18, 1052522), (36, 526261), (641, 29556), (821, 23076), (1282, 14778), (1642, 11538), (1923, 9852), (2463, 7692), (2564, 7389), (3284, 5769), (3846, 4926)]