18952456

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 36694080

約数和(自身を除く): 17741624

約数列:

[1, 2, 4, 8, 61, 71, 122, 142, 244, 284, 488, 547, 568, 1094, 2188, 4331, 4376, 8662, 17324, 33367, 34648, 38837, 66734, 77674, 133468, 155348, 266936, 310696, 2369057, 4738114, 9476228, 18952456]

約数ペア:

[(1, 18952456), (2, 9476228), (4, 4738114), (8, 2369057), (61, 310696), (71, 266936), (122, 155348), (142, 133468), (244, 77674), (284, 66734), (488, 38837), (547, 34648), (568, 33367), (1094, 17324), (2188, 8662), (4331, 4376)]