291641896

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{400607}}^1$

素因数の和:400633

約数の個数: 32

約数和(自身を含む): 673021440

約数和(自身を除く): 381379544

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 400607, 801214, 1602428, 2804249, 3204856, 5207891, 5608498, 10415782, 11216996, 20831564, 22433992, 36455237, 41663128, 72910474, 145820948, 291641896]

約数ペア:

[(1, 291641896), (2, 145820948), (4, 72910474), (7, 41663128), (8, 36455237), (13, 22433992), (14, 20831564), (26, 11216996), (28, 10415782), (52, 5608498), (56, 5207891), (91, 3204856), (104, 2804249), (182, 1602428), (364, 801214), (728, 400607)]