21509200

素因数分解:

$2^4\times 5^2\times {\mathrm{53773}}^1$

素因数の和:53791

約数の個数: 30

約数和(自身を含む): 51676814

約数和(自身を除く): 30167614

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53773, 107546, 215092, 268865, 430184, 537730, 860368, 1075460, 1344325, 2150920, 2688650, 4301840, 5377300, 10754600, 21509200]

約数ペア:

[(1, 21509200), (2, 10754600), (4, 5377300), (5, 4301840), (8, 2688650), (10, 2150920), (16, 1344325), (20, 1075460), (25, 860368), (40, 537730), (50, 430184), (80, 268865), (100, 215092), (200, 107546), (400, 53773)]