20218403177

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{293}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 25743505536

約数和(自身を除く): 5525102359

約数列:

[1, 7, 19, 47, 49, 83, 133, 293, 329, 361, 581, 893, 931, 1577, 2051, 2303, 2527, 3901, 4067, 5567, 6251, 11039, 13771, 14357, 16967, 17689, 24319, 27307, 29963, 38969, 43757, 74119, 77273, 96397, 105773, 118769, 170233, 191149, 209741, 261649, 272783, 462061, 518833, 674779, 740411, 831383, 1142993, 1191631, 1408261, 1468187, 1831543, 3234427, 3631831, 4971331, 5182877, 8000951, 8779159, 9857827, 12820801, 21716867, 22640989, 34799317, 56006657, 61454113, 69004789, 152018069, 243595219, 412620473, 430178791, 1064126483, 2888343311, 20218403177]

約数ペア:

[(1, 20218403177), (7, 2888343311), (19, 1064126483), (47, 430178791), (49, 412620473), (83, 243595219), (133, 152018069), (293, 69004789), (329, 61454113), (361, 56006657), (581, 34799317), (893, 22640989), (931, 21716867), (1577, 12820801), (2051, 9857827), (2303, 8779159), (2527, 8000951), (3901, 5182877), (4067, 4971331), (5567, 3631831), (6251, 3234427), (11039, 1831543), (13771, 1468187), (14357, 1408261), (16967, 1191631), (17689, 1142993), (24319, 831383), (27307, 740411), (29963, 674779), (38969, 518833), (43757, 462061), (74119, 272783), (77273, 261649), (96397, 209741), (105773, 191149), (118769, 170233)]