21437200

素因数分解:

$2^4\times 5^2\times {\mathrm{53593}}^1$

素因数の和:53611

約数の個数: 30

約数和(自身を含む): 51503834

約数和(自身を除く): 30066634

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53593, 107186, 214372, 267965, 428744, 535930, 857488, 1071860, 1339825, 2143720, 2679650, 4287440, 5359300, 10718600, 21437200]

約数ペア:

[(1, 21437200), (2, 10718600), (4, 5359300), (5, 4287440), (8, 2679650), (10, 2143720), (16, 1339825), (20, 1071860), (25, 857488), (40, 535930), (50, 428744), (80, 267965), (100, 214372), (200, 107186), (400, 53593)]