18709718

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{21407}}^1$

素因数の和:21451

約数の個数: 16

約数和(自身を含む): 30827520

約数和(自身を除く): 12117802

約数列:

[1, 2, 19, 23, 38, 46, 437, 874, 21407, 42814, 406733, 492361, 813466, 984722, 9354859, 18709718]

約数ペア:

[(1, 18709718), (2, 9354859), (19, 984722), (23, 813466), (38, 492361), (46, 406733), (437, 42814), (874, 21407)]