21674620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1187}}^1$

素因数の和:1290

約数の個数: 48

約数和(自身を含む): 50295168

約数和(自身を除く): 28620548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 166, 220, 332, 415, 830, 913, 1187, 1660, 1826, 2374, 3652, 4565, 4748, 5935, 9130, 11870, 13057, 18260, 23740, 26114, 52228, 65285, 98521, 130570, 197042, 261140, 394084, 492605, 985210, 1083731, 1970420, 2167462, 4334924, 5418655, 10837310, 21674620]

約数ペア:

[(1, 21674620), (2, 10837310), (4, 5418655), (5, 4334924), (10, 2167462), (11, 1970420), (20, 1083731), (22, 985210), (44, 492605), (55, 394084), (83, 261140), (110, 197042), (166, 130570), (220, 98521), (332, 65285), (415, 52228), (830, 26114), (913, 23740), (1187, 18260), (1660, 13057), (1826, 11870), (2374, 9130), (3652, 5935), (4565, 4748)]