18730299

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2711}}^1$

素因数の和:2775

約数の個数: 24

約数和(自身を含む): 29680128

約数和(自身を除く): 10949829

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 2711, 6909, 8133, 18977, 56931, 127417, 132839, 382251, 398517, 891919, 2675757, 6243433, 18730299]

約数ペア:

[(1, 18730299), (3, 6243433), (7, 2675757), (21, 891919), (47, 398517), (49, 382251), (141, 132839), (147, 127417), (329, 56931), (987, 18977), (2303, 8133), (2711, 6909)]