128905917

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{7369}}^1$

素因数の和:7410

約数の個数: 32

約数和(自身を含む): 212256000

約数和(自身を除く): 83350083

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 343, 357, 833, 1029, 2499, 5831, 7369, 17493, 22107, 51583, 125273, 154749, 361081, 375819, 876911, 1083243, 2527567, 2630733, 6138377, 7582701, 18415131, 42968639, 128905917]

約数ペア:

[(1, 128905917), (3, 42968639), (7, 18415131), (17, 7582701), (21, 6138377), (49, 2630733), (51, 2527567), (119, 1083243), (147, 876911), (343, 375819), (357, 361081), (833, 154749), (1029, 125273), (2499, 51583), (5831, 22107), (7369, 17493)]