21062750

素因数分解:

$2^1\times 5^3\times {\mathrm{173}}^1\times {\mathrm{487}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 39738816

約数和(自身を除く): 18676066

約数列:

[1, 2, 5, 10, 25, 50, 125, 173, 250, 346, 487, 865, 974, 1730, 2435, 4325, 4870, 8650, 12175, 21625, 24350, 43250, 60875, 84251, 121750, 168502, 421255, 842510, 2106275, 4212550, 10531375, 21062750]

約数ペア:

[(1, 21062750), (2, 10531375), (5, 4212550), (10, 2106275), (25, 842510), (50, 421255), (125, 168502), (173, 121750), (250, 84251), (346, 60875), (487, 43250), (865, 24350), (974, 21625), (1730, 12175), (2435, 8650), (4325, 4870)]