21180324

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{503}}^1$

素因数の和:561

約数の個数: 72

約数和(自身を含む): 56306880

約数和(自身を除く): 35126556

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 29, 33, 44, 58, 66, 87, 116, 121, 132, 174, 242, 319, 348, 363, 484, 503, 638, 726, 957, 1006, 1276, 1452, 1509, 1914, 2012, 3018, 3509, 3828, 5533, 6036, 7018, 10527, 11066, 14036, 14587, 16599, 21054, 22132, 29174, 33198, 42108, 43761, 58348, 60863, 66396, 87522, 121726, 160457, 175044, 182589, 243452, 320914, 365178, 481371, 641828, 730356, 962742, 1765027, 1925484, 3530054, 5295081, 7060108, 10590162, 21180324]

約数ペア:

[(1, 21180324), (2, 10590162), (3, 7060108), (4, 5295081), (6, 3530054), (11, 1925484), (12, 1765027), (22, 962742), (29, 730356), (33, 641828), (44, 481371), (58, 365178), (66, 320914), (87, 243452), (116, 182589), (121, 175044), (132, 160457), (174, 121726), (242, 87522), (319, 66396), (348, 60863), (363, 58348), (484, 43761), (503, 42108), (638, 33198), (726, 29174), (957, 22132), (1006, 21054), (1276, 16599), (1452, 14587), (1509, 14036), (1914, 11066), (2012, 10527), (3018, 7018), (3509, 6036), (3828, 5533)]