20398122

素因数分解:

$2^1\times 3^3\times {\mathrm{499}}^1\times {\mathrm{757}}^1$

素因数の和:1267

約数の個数: 32

約数和(自身を含む): 45480000

約数和(自身を除く): 25081878

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 499, 757, 998, 1497, 1514, 2271, 2994, 4491, 4542, 6813, 8982, 13473, 13626, 20439, 26946, 40878, 377743, 755486, 1133229, 2266458, 3399687, 6799374, 10199061, 20398122]

約数ペア:

[(1, 20398122), (2, 10199061), (3, 6799374), (6, 3399687), (9, 2266458), (18, 1133229), (27, 755486), (54, 377743), (499, 40878), (757, 26946), (998, 20439), (1497, 13626), (1514, 13473), (2271, 8982), (2994, 6813), (4491, 4542)]