18437991

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{42979}}^1$

素因数の和:43006

約数の個数: 16

約数和(自身を含む): 28882560

約数和(自身を除く): 10444569

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 42979, 128937, 472769, 558727, 1418307, 1676181, 6145997, 18437991]

約数ペア:

[(1, 18437991), (3, 6145997), (11, 1676181), (13, 1418307), (33, 558727), (39, 472769), (143, 128937), (429, 42979)]