21510350

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{6421}}^1$

素因数の和:6500

約数の個数: 24

約数和(自身を含む): 40612728

約数和(自身を除く): 19102378

約数列:

[1, 2, 5, 10, 25, 50, 67, 134, 335, 670, 1675, 3350, 6421, 12842, 32105, 64210, 160525, 321050, 430207, 860414, 2151035, 4302070, 10755175, 21510350]

約数ペア:

[(1, 21510350), (2, 10755175), (5, 4302070), (10, 2151035), (25, 860414), (50, 430207), (67, 321050), (134, 160525), (335, 64210), (670, 32105), (1675, 12842), (3350, 6421)]