18958065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2543}}^1$

素因数の和:2629

約数の個数: 32

約数和(自身を含む): 35168256

約数和(自身を除く): 16210191

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 2543, 7455, 7629, 12715, 17801, 38145, 53403, 89005, 180553, 267015, 541659, 902765, 1263871, 2708295, 3791613, 6319355, 18958065]

約数ペア:

[(1, 18958065), (3, 6319355), (5, 3791613), (7, 2708295), (15, 1263871), (21, 902765), (35, 541659), (71, 267015), (105, 180553), (213, 89005), (355, 53403), (497, 38145), (1065, 17801), (1491, 12715), (2485, 7629), (2543, 7455)]