21433040

素因数分解:

$2^4\times 5^1\times {\mathrm{267913}}^1$

素因数の和:267926

約数の個数: 20

約数和(自身を含む): 49832004

約数和(自身を除く): 28398964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 267913, 535826, 1071652, 1339565, 2143304, 2679130, 4286608, 5358260, 10716520, 21433040]

約数ペア:

[(1, 21433040), (2, 10716520), (4, 5358260), (5, 4286608), (8, 2679130), (10, 2143304), (16, 1339565), (20, 1071652), (40, 535826), (80, 267913)]