21985782

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:693

約数の個数: 64

約数和(自身を含む): 55017984

約数和(自身を除く): 33032202

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 67, 78, 91, 134, 182, 201, 273, 402, 469, 546, 601, 871, 938, 1202, 1407, 1742, 1803, 2613, 2814, 3606, 4207, 5226, 6097, 7813, 8414, 12194, 12621, 15626, 18291, 23439, 25242, 36582, 40267, 46878, 54691, 80534, 109382, 120801, 164073, 241602, 281869, 328146, 523471, 563738, 845607, 1046942, 1570413, 1691214, 3140826, 3664297, 7328594, 10992891, 21985782]

約数ペア:

[(1, 21985782), (2, 10992891), (3, 7328594), (6, 3664297), (7, 3140826), (13, 1691214), (14, 1570413), (21, 1046942), (26, 845607), (39, 563738), (42, 523471), (67, 328146), (78, 281869), (91, 241602), (134, 164073), (182, 120801), (201, 109382), (273, 80534), (402, 54691), (469, 46878), (546, 40267), (601, 36582), (871, 25242), (938, 23439), (1202, 18291), (1407, 15626), (1742, 12621), (1803, 12194), (2613, 8414), (2814, 7813), (3606, 6097), (4207, 5226)]