21797908

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{1553}}^1$

素因数の和:1608

約数の個数: 36

約数和(自身を含む): 43403220

約数和(自身を除く): 21605312

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 121, 242, 319, 484, 638, 1276, 1553, 3106, 3509, 6212, 7018, 14036, 17083, 34166, 45037, 68332, 90074, 180148, 187913, 375826, 495407, 751652, 990814, 1981628, 5449477, 10898954, 21797908]

約数ペア:

[(1, 21797908), (2, 10898954), (4, 5449477), (11, 1981628), (22, 990814), (29, 751652), (44, 495407), (58, 375826), (116, 187913), (121, 180148), (242, 90074), (319, 68332), (484, 45037), (638, 34166), (1276, 17083), (1553, 14036), (3106, 7018), (3509, 6212)]