21130620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50311}}^1$

素因数の和:50330

約数の個数: 48

約数和(自身を含む): 67619328

約数和(自身を除く): 46488708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50311, 100622, 150933, 201244, 251555, 301866, 352177, 503110, 603732, 704354, 754665, 1006220, 1056531, 1408708, 1509330, 1760885, 2113062, 3018660, 3521770, 4226124, 5282655, 7043540, 10565310, 21130620]

約数ペア:

[(1, 21130620), (2, 10565310), (3, 7043540), (4, 5282655), (5, 4226124), (6, 3521770), (7, 3018660), (10, 2113062), (12, 1760885), (14, 1509330), (15, 1408708), (20, 1056531), (21, 1006220), (28, 754665), (30, 704354), (35, 603732), (42, 503110), (60, 352177), (70, 301866), (84, 251555), (105, 201244), (140, 150933), (210, 100622), (420, 50311)]