21306400

素因数分解:

$2^5\times 5^2\times {\mathrm{26633}}^1$

素因数の和:26653

約数の個数: 36

約数和(自身を含む): 52016202

約数和(自身を除く): 30709802

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26633, 53266, 106532, 133165, 213064, 266330, 426128, 532660, 665825, 852256, 1065320, 1331650, 2130640, 2663300, 4261280, 5326600, 10653200, 21306400]

約数ペア:

[(1, 21306400), (2, 10653200), (4, 5326600), (5, 4261280), (8, 2663300), (10, 2130640), (16, 1331650), (20, 1065320), (25, 852256), (32, 665825), (40, 532660), (50, 426128), (80, 266330), (100, 213064), (160, 133165), (200, 106532), (400, 53266), (800, 26633)]