20168355

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1103}}^1$

素因数の和:1187

約数の個数: 32

約数和(自身を含む): 34338816

約数和(自身を除く): 14170461

約数列:

[1, 3, 5, 15, 23, 53, 69, 115, 159, 265, 345, 795, 1103, 1219, 3309, 3657, 5515, 6095, 16545, 18285, 25369, 58459, 76107, 126845, 175377, 292295, 380535, 876885, 1344557, 4033671, 6722785, 20168355]

約数ペア:

[(1, 20168355), (3, 6722785), (5, 4033671), (15, 1344557), (23, 876885), (53, 380535), (69, 292295), (115, 175377), (159, 126845), (265, 76107), (345, 58459), (795, 25369), (1103, 18285), (1219, 16545), (3309, 6095), (3657, 5515)]