21436400

素因数分解:

$2^4\times 5^2\times {\mathrm{53591}}^1$

素因数の和:53609

約数の個数: 30

約数和(自身を含む): 51501912

約数和(自身を除く): 30065512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53591, 107182, 214364, 267955, 428728, 535910, 857456, 1071820, 1339775, 2143640, 2679550, 4287280, 5359100, 10718200, 21436400]

約数ペア:

[(1, 21436400), (2, 10718200), (4, 5359100), (5, 4287280), (8, 2679550), (10, 2143640), (16, 1339775), (20, 1071820), (25, 857456), (40, 535910), (50, 428728), (80, 267955), (100, 214364), (200, 107182), (400, 53591)]