18700816

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 38669400

約数和(自身を除く): 19968584

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 197, 272, 349, 394, 698, 788, 1396, 1576, 2792, 3152, 3349, 5584, 5933, 6698, 11866, 13396, 23732, 26792, 47464, 53584, 68753, 94928, 137506, 275012, 550024, 1100048, 1168801, 2337602, 4675204, 9350408, 18700816]

約数ペア:

[(1, 18700816), (2, 9350408), (4, 4675204), (8, 2337602), (16, 1168801), (17, 1100048), (34, 550024), (68, 275012), (136, 137506), (197, 94928), (272, 68753), (349, 53584), (394, 47464), (698, 26792), (788, 23732), (1396, 13396), (1576, 11866), (2792, 6698), (3152, 5933), (3349, 5584)]