21214578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1$

素因数の和:1047

約数の個数: 64

約数和(自身を含む): 54079488

約数和(自身を除く): 32864910

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 47, 66, 77, 94, 141, 154, 231, 282, 329, 462, 517, 658, 977, 987, 1034, 1551, 1954, 1974, 2931, 3102, 3619, 5862, 6839, 7238, 10747, 10857, 13678, 20517, 21494, 21714, 32241, 41034, 45919, 64482, 75229, 91838, 137757, 150458, 225687, 275514, 321433, 451374, 505109, 642866, 964299, 1010218, 1515327, 1928598, 3030654, 3535763, 7071526, 10607289, 21214578]

約数ペア:

[(1, 21214578), (2, 10607289), (3, 7071526), (6, 3535763), (7, 3030654), (11, 1928598), (14, 1515327), (21, 1010218), (22, 964299), (33, 642866), (42, 505109), (47, 451374), (66, 321433), (77, 275514), (94, 225687), (141, 150458), (154, 137757), (231, 91838), (282, 75229), (329, 64482), (462, 45919), (517, 41034), (658, 32241), (977, 21714), (987, 21494), (1034, 20517), (1551, 13678), (1954, 10857), (1974, 10747), (2931, 7238), (3102, 6839), (3619, 5862)]