21385968

素因数分解:

$2^4\times 3^1\times {\mathrm{445541}}^1$

素因数の和:445552

約数の個数: 20

約数和(自身を含む): 55247208

約数和(自身を除く): 33861240

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 445541, 891082, 1336623, 1782164, 2673246, 3564328, 5346492, 7128656, 10692984, 21385968]

約数ペア:

[(1, 21385968), (2, 10692984), (3, 7128656), (4, 5346492), (6, 3564328), (8, 2673246), (12, 1782164), (16, 1336623), (24, 891082), (48, 445541)]