21644920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49193}}^1$

素因数の和:49215

約数の個数: 32

約数和(自身を含む): 53129520

約数和(自身を除く): 31484600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49193, 98386, 196772, 245965, 393544, 491930, 541123, 983860, 1082246, 1967720, 2164492, 2705615, 4328984, 5411230, 10822460, 21644920]

約数ペア:

[(1, 21644920), (2, 10822460), (4, 5411230), (5, 4328984), (8, 2705615), (10, 2164492), (11, 1967720), (20, 1082246), (22, 983860), (40, 541123), (44, 491930), (55, 393544), (88, 245965), (110, 196772), (220, 98386), (440, 49193)]