18787618

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:394

約数の個数: 32

約数和(自身を含む): 31795200

約数和(自身を除く): 13007582

約数列:

[1, 2, 17, 19, 34, 38, 127, 229, 254, 323, 458, 646, 2159, 2413, 3893, 4318, 4351, 4826, 7786, 8702, 29083, 41021, 58166, 73967, 82042, 147934, 494411, 552577, 988822, 1105154, 9393809, 18787618]

約数ペア:

[(1, 18787618), (2, 9393809), (17, 1105154), (19, 988822), (34, 552577), (38, 494411), (127, 147934), (229, 82042), (254, 73967), (323, 58166), (458, 41021), (646, 29083), (2159, 8702), (2413, 7786), (3893, 4826), (4318, 4351)]