161231903

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{787}}^1$

素因数の和:951

約数の個数: 24

約数和(自身を含む): 194576112

約数和(自身を除く): 33344209

約数列:

[1, 7, 37, 49, 113, 259, 787, 791, 1813, 4181, 5509, 5537, 29119, 29267, 38563, 88931, 203833, 204869, 622517, 1426831, 3290447, 4357619, 23033129, 161231903]

約数ペア:

[(1, 161231903), (7, 23033129), (37, 4357619), (49, 3290447), (113, 1426831), (259, 622517), (787, 204869), (791, 203833), (1813, 88931), (4181, 38563), (5509, 29267), (5537, 29119)]