21845180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22291}}^1$

素因数の和:22314

約数の個数: 36

約数和(自身を含む): 53367048

約数和(自身を除く): 31521868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22291, 44582, 89164, 111455, 156037, 222910, 312074, 445820, 624148, 780185, 1092259, 1560370, 2184518, 3120740, 4369036, 5461295, 10922590, 21845180]

約数ペア:

[(1, 21845180), (2, 10922590), (4, 5461295), (5, 4369036), (7, 3120740), (10, 2184518), (14, 1560370), (20, 1092259), (28, 780185), (35, 624148), (49, 445820), (70, 312074), (98, 222910), (140, 156037), (196, 111455), (245, 89164), (490, 44582), (980, 22291)]