20191563

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1109}}^1$

素因数の和:1156

約数の個数: 36

約数和(自身を含む): 35440080

約数和(自身を除く): 15248517

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 289, 357, 867, 1071, 1109, 2023, 2601, 3327, 6069, 7763, 9981, 18207, 18853, 23289, 56559, 69867, 131971, 169677, 320501, 395913, 961503, 1187739, 2243507, 2884509, 6730521, 20191563]

約数ペア:

[(1, 20191563), (3, 6730521), (7, 2884509), (9, 2243507), (17, 1187739), (21, 961503), (51, 395913), (63, 320501), (119, 169677), (153, 131971), (289, 69867), (357, 56559), (867, 23289), (1071, 18853), (1109, 18207), (2023, 9981), (2601, 7763), (3327, 6069)]