28225561

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 36465408

約数和(自身を除く): 8239847

約数列:

[1, 7, 13, 37, 83, 91, 101, 259, 481, 581, 707, 1079, 1313, 3071, 3367, 3737, 7553, 8383, 9191, 21497, 26159, 39923, 48581, 58681, 108979, 279461, 310171, 340067, 762853, 2171197, 4032223, 28225561]

約数ペア:

[(1, 28225561), (7, 4032223), (13, 2171197), (37, 762853), (83, 340067), (91, 310171), (101, 279461), (259, 108979), (481, 58681), (581, 48581), (707, 39923), (1079, 26159), (1313, 21497), (3071, 9191), (3367, 8383), (3737, 7553)]