21612540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12421}}^1$

素因数の和:12462

約数の個数: 48

約数和(自身を含む): 62606880

約数和(自身を除く): 40994340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12421, 24842, 37263, 49684, 62105, 74526, 124210, 149052, 186315, 248420, 360209, 372630, 720418, 745260, 1080627, 1440836, 1801045, 2161254, 3602090, 4322508, 5403135, 7204180, 10806270, 21612540]

約数ペア:

[(1, 21612540), (2, 10806270), (3, 7204180), (4, 5403135), (5, 4322508), (6, 3602090), (10, 2161254), (12, 1801045), (15, 1440836), (20, 1080627), (29, 745260), (30, 720418), (58, 372630), (60, 360209), (87, 248420), (116, 186315), (145, 149052), (174, 124210), (290, 74526), (348, 62105), (435, 49684), (580, 37263), (870, 24842), (1740, 12421)]