21346976

素因数分解:

$2^5\times 7^1\times {\mathrm{157}}^1\times {\mathrm{607}}^1$

素因数の和:781

約数の個数: 48

約数和(自身を含む): 48416256

約数和(自身を除く): 27069280

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 157, 224, 314, 607, 628, 1099, 1214, 1256, 2198, 2428, 2512, 4249, 4396, 4856, 5024, 8498, 8792, 9712, 16996, 17584, 19424, 33992, 35168, 67984, 95299, 135968, 190598, 381196, 667093, 762392, 1334186, 1524784, 2668372, 3049568, 5336744, 10673488, 21346976]

約数ペア:

[(1, 21346976), (2, 10673488), (4, 5336744), (7, 3049568), (8, 2668372), (14, 1524784), (16, 1334186), (28, 762392), (32, 667093), (56, 381196), (112, 190598), (157, 135968), (224, 95299), (314, 67984), (607, 35168), (628, 33992), (1099, 19424), (1214, 17584), (1256, 16996), (2198, 9712), (2428, 8792), (2512, 8498), (4249, 5024), (4396, 4856)]