21845360

素因数分解:

$2^4\times 5^1\times {\mathrm{273067}}^1$

素因数の和:273080

約数の個数: 20

約数和(自身を含む): 50790648

約数和(自身を除く): 28945288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 273067, 546134, 1092268, 1365335, 2184536, 2730670, 4369072, 5461340, 10922680, 21845360]

約数ペア:

[(1, 21845360), (2, 10922680), (4, 5461340), (5, 4369072), (8, 2730670), (10, 2184536), (16, 1365335), (20, 1092268), (40, 546134), (80, 273067)]