21724052

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 25772908

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 61, 79, 92, 98, 122, 158, 161, 196, 244, 316, 322, 427, 553, 644, 854, 1106, 1127, 1403, 1708, 1817, 2212, 2254, 2806, 2989, 3634, 3871, 4508, 4819, 5612, 5978, 7268, 7742, 9638, 9821, 11956, 12719, 15484, 19276, 19642, 25438, 33733, 39284, 50876, 67466, 68747, 89033, 110837, 134932, 137494, 178066, 221674, 236131, 274988, 356132, 443348, 472262, 775859, 944524, 1551718, 3103436, 5431013, 10862026, 21724052]

約数ペア:

[(1, 21724052), (2, 10862026), (4, 5431013), (7, 3103436), (14, 1551718), (23, 944524), (28, 775859), (46, 472262), (49, 443348), (61, 356132), (79, 274988), (92, 236131), (98, 221674), (122, 178066), (158, 137494), (161, 134932), (196, 110837), (244, 89033), (316, 68747), (322, 67466), (427, 50876), (553, 39284), (644, 33733), (854, 25438), (1106, 19642), (1127, 19276), (1403, 15484), (1708, 12719), (1817, 11956), (2212, 9821), (2254, 9638), (2806, 7742), (2989, 7268), (3634, 5978), (3871, 5612), (4508, 4819)]