216720973

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 287280000

約数和(自身を除く): 70559027

約数列:

[1, 7, 19, 23, 29, 49, 133, 161, 203, 349, 437, 551, 667, 931, 1127, 1421, 2443, 3059, 3857, 4669, 6631, 8027, 10121, 12673, 17101, 21413, 26999, 32683, 46417, 56189, 70847, 88711, 152513, 192299, 232783, 324919, 393323, 495929, 620977, 1067591, 1346093, 1629481, 4422877, 7473137, 9422651, 11406367, 30960139, 216720973]

約数ペア:

[(1, 216720973), (7, 30960139), (19, 11406367), (23, 9422651), (29, 7473137), (49, 4422877), (133, 1629481), (161, 1346093), (203, 1067591), (349, 620977), (437, 495929), (551, 393323), (667, 324919), (931, 232783), (1127, 192299), (1421, 152513), (2443, 88711), (3059, 70847), (3857, 56189), (4669, 46417), (6631, 32683), (8027, 26999), (10121, 21413), (12673, 17101)]