20928216

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{16453}}^1$

素因数の和:16515

約数の個数: 32

約数和(自身を含む): 53310960

約数和(自身を除く): 32382744

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636, 1272, 16453, 32906, 49359, 65812, 98718, 131624, 197436, 394872, 872009, 1744018, 2616027, 3488036, 5232054, 6976072, 10464108, 20928216]

約数ペア:

[(1, 20928216), (2, 10464108), (3, 6976072), (4, 5232054), (6, 3488036), (8, 2616027), (12, 1744018), (24, 872009), (53, 394872), (106, 197436), (159, 131624), (212, 98718), (318, 65812), (424, 49359), (636, 32906), (1272, 16453)]