18783986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 31667328

約数和(自身を除く): 12883342

約数列:

[1, 2, 13, 26, 41, 67, 82, 134, 263, 526, 533, 871, 1066, 1742, 2747, 3419, 5494, 6838, 10783, 17621, 21566, 35242, 35711, 71422, 140179, 229073, 280358, 458146, 722461, 1444922, 9391993, 18783986]

約数ペア:

[(1, 18783986), (2, 9391993), (13, 1444922), (26, 722461), (41, 458146), (67, 280358), (82, 229073), (134, 140179), (263, 71422), (526, 35711), (533, 35242), (871, 21566), (1066, 17621), (1742, 10783), (2747, 6838), (3419, 5494)]