18751138

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 34128000

約数和(自身を除く): 15376862

約数列:

[1, 2, 7, 14, 19, 38, 133, 157, 266, 314, 449, 898, 1099, 2198, 2983, 3143, 5966, 6286, 8531, 17062, 20881, 41762, 59717, 70493, 119434, 140986, 493451, 986902, 1339367, 2678734, 9375569, 18751138]

約数ペア:

[(1, 18751138), (2, 9375569), (7, 2678734), (14, 1339367), (19, 986902), (38, 493451), (133, 140986), (157, 119434), (266, 70493), (314, 59717), (449, 41762), (898, 20881), (1099, 17062), (2198, 8531), (2983, 6286), (3143, 5966)]