19212067

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 23384592

約数和(自身を除く): 4172525

約数列:

[1, 7, 41, 49, 73, 131, 287, 511, 917, 2009, 2993, 3577, 5371, 6419, 9563, 20951, 37597, 66941, 146657, 263179, 392083, 468587, 2744581, 19212067]

約数ペア:

[(1, 19212067), (7, 2744581), (41, 468587), (49, 392083), (73, 263179), (131, 146657), (287, 66941), (511, 37597), (917, 20951), (2009, 9563), (2993, 6419), (3577, 5371)]