81219828

素因数分解:

$2^2\times 3^1\times {\mathrm{641}}^1\times {\mathrm{10559}}^1$

素因数の和:11207

約数の個数: 24

約数和(自身を含む): 189826560

約数和(自身を除く): 108606732

約数列:

[1, 2, 3, 4, 6, 12, 641, 1282, 1923, 2564, 3846, 7692, 10559, 21118, 31677, 42236, 63354, 126708, 6768319, 13536638, 20304957, 27073276, 40609914, 81219828]

約数ペア:

[(1, 81219828), (2, 40609914), (3, 27073276), (4, 20304957), (6, 13536638), (12, 6768319), (641, 126708), (1282, 63354), (1923, 42236), (2564, 31677), (3846, 21118), (7692, 10559)]