16978930

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:574

約数の個数: 32

約数和(自身を含む): 31751280

約数和(自身を除く): 14772350

約数列:

[1, 2, 5, 10, 37, 74, 109, 185, 218, 370, 421, 545, 842, 1090, 2105, 4033, 4210, 8066, 15577, 20165, 31154, 40330, 45889, 77885, 91778, 155770, 229445, 458890, 1697893, 3395786, 8489465, 16978930]

約数ペア:

[(1, 16978930), (2, 8489465), (5, 3395786), (10, 1697893), (37, 458890), (74, 229445), (109, 155770), (185, 91778), (218, 77885), (370, 45889), (421, 40330), (545, 31154), (842, 20165), (1090, 15577), (2105, 8066), (4033, 4210)]