19712912921

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{598649}}^1$

素因数の和:598828

約数の個数: 16

約数和(自身を含む): 22628970000

約数和(自身を除く): 2916057079

約数列:

[1, 13, 17, 149, 221, 1937, 2533, 32929, 598649, 7782437, 10177033, 89198701, 132301429, 1159583113, 1516377917, 19712912921]

約数ペア:

[(1, 19712912921), (13, 1516377917), (17, 1159583113), (149, 132301429), (221, 89198701), (1937, 10177033), (2533, 7782437), (32929, 598649)]