18870297982

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1\times {\mathrm{10993}}^1$

素因数の和:11440

約数の個数: 32

約数和(自身を含む): 30079584000

約数和(自身を除く): 11209286018

約数列:

[1, 2, 19, 38, 199, 227, 398, 454, 3781, 4313, 7562, 8626, 10993, 21986, 45173, 90346, 208867, 417734, 858287, 1716574, 2187607, 2495411, 4375214, 4990822, 41564533, 47412809, 83129066, 94825618, 496586789, 993173578, 9435148991, 18870297982]

約数ペア:

[(1, 18870297982), (2, 9435148991), (19, 993173578), (38, 496586789), (199, 94825618), (227, 83129066), (398, 47412809), (454, 41564533), (3781, 4990822), (4313, 4375214), (7562, 2495411), (8626, 2187607), (10993, 1716574), (21986, 858287), (45173, 417734), (90346, 208867)]