18115923

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 10776237

約数列:

[1, 3, 7, 21, 29, 87, 151, 197, 203, 453, 591, 609, 1057, 1379, 3171, 4137, 4379, 5713, 13137, 17139, 29747, 30653, 39991, 89241, 91959, 119973, 208229, 624687, 862663, 2587989, 6038641, 18115923]

約数ペア:

[(1, 18115923), (3, 6038641), (7, 2587989), (21, 862663), (29, 624687), (87, 208229), (151, 119973), (197, 91959), (203, 89241), (453, 39991), (591, 30653), (609, 29747), (1057, 17139), (1379, 13137), (3171, 5713), (4137, 4379)]