207923289

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 352665600

約数和(自身を除く): 144742311

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 139, 161, 163, 399, 417, 437, 483, 489, 973, 1141, 1311, 2641, 2919, 3059, 3097, 3197, 3423, 3749, 7923, 9177, 9291, 9591, 11247, 18487, 21679, 22379, 22657, 26243, 55461, 60743, 65037, 67137, 67971, 71231, 78729, 158599, 182229, 213693, 425201, 430483, 475797, 498617, 521111, 1275603, 1291449, 1495851, 1563333, 3013381, 3647777, 9040143, 9901109, 10943331, 29703327, 69307763, 207923289]

約数ペア:

[(1, 207923289), (3, 69307763), (7, 29703327), (19, 10943331), (21, 9901109), (23, 9040143), (57, 3647777), (69, 3013381), (133, 1563333), (139, 1495851), (161, 1291449), (163, 1275603), (399, 521111), (417, 498617), (437, 475797), (483, 430483), (489, 425201), (973, 213693), (1141, 182229), (1311, 158599), (2641, 78729), (2919, 71231), (3059, 67971), (3097, 67137), (3197, 65037), (3423, 60743), (3749, 55461), (7923, 26243), (9177, 22657), (9291, 22379), (9591, 21679), (11247, 18487)]