191551521

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{20873}}^1$

素因数の和:20925

約数の個数: 32

約数和(自身を含む): 320624640

約数和(自身を除く): 129073119

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 3059, 9177, 20873, 62619, 146111, 396587, 438333, 480079, 1189761, 1440237, 2776109, 3360553, 8328327, 9121501, 10081659, 27364503, 63850507, 191551521]

約数ペア:

[(1, 191551521), (3, 63850507), (7, 27364503), (19, 10081659), (21, 9121501), (23, 8328327), (57, 3360553), (69, 2776109), (133, 1440237), (161, 1189761), (399, 480079), (437, 438333), (483, 396587), (1311, 146111), (3059, 62619), (9177, 20873)]