21180816

素因数分解:

$2^4\times 3^2\times {\mathrm{147089}}^1$

素因数の和:147103

約数の個数: 30

約数和(自身を含む): 59277270

約数和(自身を除く): 38096454

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 147089, 294178, 441267, 588356, 882534, 1176712, 1323801, 1765068, 2353424, 2647602, 3530136, 5295204, 7060272, 10590408, 21180816]

約数ペア:

[(1, 21180816), (2, 10590408), (3, 7060272), (4, 5295204), (6, 3530136), (8, 2647602), (9, 2353424), (12, 1765068), (16, 1323801), (18, 1176712), (24, 882534), (36, 588356), (48, 441267), (72, 294178), (144, 147089)]