18329689

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 23901696

約数和(自身を除く): 5572007

約数列:

[1, 7, 17, 23, 37, 119, 161, 181, 259, 391, 629, 851, 1267, 2737, 3077, 4163, 4403, 5957, 6697, 14467, 21539, 29141, 46879, 70771, 101269, 113849, 154031, 495397, 796943, 1078217, 2618527, 18329689]

約数ペア:

[(1, 18329689), (7, 2618527), (17, 1078217), (23, 796943), (37, 495397), (119, 154031), (161, 113849), (181, 101269), (259, 70771), (391, 46879), (629, 29141), (851, 21539), (1267, 14467), (2737, 6697), (3077, 5957), (4163, 4403)]