81813018

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{2819}}^1$

素因数の和:3522

約数の個数: 32

約数和(自身を含む): 187338240

約数和(自身を除く): 105525222

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 691, 1382, 2073, 2819, 4146, 4837, 5638, 8457, 9674, 14511, 16914, 19733, 29022, 39466, 59199, 118398, 1947929, 3895858, 5843787, 11687574, 13635503, 27271006, 40906509, 81813018]

約数ペア:

[(1, 81813018), (2, 40906509), (3, 27271006), (6, 13635503), (7, 11687574), (14, 5843787), (21, 3895858), (42, 1947929), (691, 118398), (1382, 59199), (2073, 39466), (2819, 29022), (4146, 19733), (4837, 16914), (5638, 14511), (8457, 9674)]