21478844

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{827}}^1$

素因数の和:1025

約数の個数: 24

約数和(自身を含む): 38763648

約数和(自身を除く): 17284804

約数列:

[1, 2, 4, 43, 86, 151, 172, 302, 604, 827, 1654, 3308, 6493, 12986, 25972, 35561, 71122, 124877, 142244, 249754, 499508, 5369711, 10739422, 21478844]

約数ペア:

[(1, 21478844), (2, 10739422), (4, 5369711), (43, 499508), (86, 249754), (151, 142244), (172, 124877), (302, 71122), (604, 35561), (827, 25972), (1654, 12986), (3308, 6493)]