20968428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{967}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 53123840

約数和(自身を除く): 32155412

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 139, 156, 278, 417, 556, 834, 967, 1668, 1807, 1934, 2901, 3614, 3868, 5421, 5802, 7228, 10842, 11604, 12571, 21684, 25142, 37713, 50284, 75426, 134413, 150852, 268826, 403239, 537652, 806478, 1612956, 1747369, 3494738, 5242107, 6989476, 10484214, 20968428]

約数ペア:

[(1, 20968428), (2, 10484214), (3, 6989476), (4, 5242107), (6, 3494738), (12, 1747369), (13, 1612956), (26, 806478), (39, 537652), (52, 403239), (78, 268826), (139, 150852), (156, 134413), (278, 75426), (417, 50284), (556, 37713), (834, 25142), (967, 21684), (1668, 12571), (1807, 11604), (1934, 10842), (2901, 7228), (3614, 5802), (3868, 5421)]