19638647

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1166

約数の個数: 16

約数和(自身を含む): 23808000

約数和(自身を除く): 4169353

約数列:

[1, 7, 19, 133, 149, 991, 1043, 2831, 6937, 18829, 19817, 131803, 147659, 1033613, 2805521, 19638647]

約数ペア:

[(1, 19638647), (7, 2805521), (19, 1033613), (133, 147659), (149, 131803), (991, 19817), (1043, 18829), (2831, 6937)]