18915735

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2141}}^1$

素因数の和:2199

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 13985385

約数列:

[1, 3, 5, 15, 19, 31, 57, 93, 95, 155, 285, 465, 589, 1767, 2141, 2945, 6423, 8835, 10705, 32115, 40679, 66371, 122037, 199113, 203395, 331855, 610185, 995565, 1261049, 3783147, 6305245, 18915735]

約数ペア:

[(1, 18915735), (3, 6305245), (5, 3783147), (15, 1261049), (19, 995565), (31, 610185), (57, 331855), (93, 203395), (95, 199113), (155, 122037), (285, 66371), (465, 40679), (589, 32115), (1767, 10705), (2141, 8835), (2945, 6423)]