21390984

素因数分解:

$2^3\times 3^2\times {\mathrm{297097}}^1$

素因数の和:297109

約数の個数: 24

約数和(自身を含む): 57934110

約数和(自身を除く): 36543126

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 297097, 594194, 891291, 1188388, 1782582, 2376776, 2673873, 3565164, 5347746, 7130328, 10695492, 21390984]

約数ペア:

[(1, 21390984), (2, 10695492), (3, 7130328), (4, 5347746), (6, 3565164), (8, 2673873), (9, 2376776), (12, 1782582), (18, 1188388), (24, 891291), (36, 594194), (72, 297097)]