20511192

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^3\times {\mathrm{389}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 55692000

約数和(自身を除く): 35180808

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 169, 312, 338, 389, 507, 676, 778, 1014, 1167, 1352, 1556, 2028, 2197, 2334, 3112, 4056, 4394, 4668, 5057, 6591, 8788, 9336, 10114, 13182, 15171, 17576, 20228, 26364, 30342, 40456, 52728, 60684, 65741, 121368, 131482, 197223, 262964, 394446, 525928, 788892, 854633, 1577784, 1709266, 2563899, 3418532, 5127798, 6837064, 10255596, 20511192]

約数ペア:

[(1, 20511192), (2, 10255596), (3, 6837064), (4, 5127798), (6, 3418532), (8, 2563899), (12, 1709266), (13, 1577784), (24, 854633), (26, 788892), (39, 525928), (52, 394446), (78, 262964), (104, 197223), (156, 131482), (169, 121368), (312, 65741), (338, 60684), (389, 52728), (507, 40456), (676, 30342), (778, 26364), (1014, 20228), (1167, 17576), (1352, 15171), (1556, 13182), (2028, 10114), (2197, 9336), (2334, 8788), (3112, 6591), (4056, 5057), (4394, 4668)]