21666232

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2909}}^1$

素因数の和:2948

約数の個数: 48

約数和(自身を含む): 49761000

約数和(自身を除く): 28094768

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 392, 532, 931, 1064, 1862, 2909, 3724, 5818, 7448, 11636, 20363, 23272, 40726, 55271, 81452, 110542, 142541, 162904, 221084, 285082, 386897, 442168, 570164, 773794, 1140328, 1547588, 2708279, 3095176, 5416558, 10833116, 21666232]

約数ペア:

[(1, 21666232), (2, 10833116), (4, 5416558), (7, 3095176), (8, 2708279), (14, 1547588), (19, 1140328), (28, 773794), (38, 570164), (49, 442168), (56, 386897), (76, 285082), (98, 221084), (133, 162904), (152, 142541), (196, 110542), (266, 81452), (392, 55271), (532, 40726), (931, 23272), (1064, 20363), (1862, 11636), (2909, 7448), (3724, 5818)]