20672862

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 49641984

約数和(自身を除く): 28969122

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 53, 74, 106, 111, 159, 222, 251, 259, 318, 371, 502, 518, 742, 753, 777, 1113, 1506, 1554, 1757, 1961, 2226, 3514, 3922, 5271, 5883, 9287, 10542, 11766, 13303, 13727, 18574, 26606, 27454, 27861, 39909, 41181, 55722, 65009, 79818, 82362, 93121, 130018, 186242, 195027, 279363, 390054, 492211, 558726, 984422, 1476633, 2953266, 3445477, 6890954, 10336431, 20672862]

約数ペア:

[(1, 20672862), (2, 10336431), (3, 6890954), (6, 3445477), (7, 2953266), (14, 1476633), (21, 984422), (37, 558726), (42, 492211), (53, 390054), (74, 279363), (106, 195027), (111, 186242), (159, 130018), (222, 93121), (251, 82362), (259, 79818), (318, 65009), (371, 55722), (502, 41181), (518, 39909), (742, 27861), (753, 27454), (777, 26606), (1113, 18574), (1506, 13727), (1554, 13303), (1757, 11766), (1961, 10542), (2226, 9287), (3514, 5883), (3922, 5271)]