18904316

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{991}}^1$

素因数の和:1265

約数の個数: 24

約数和(自身を含む): 34997760

約数和(自身を除く): 16093444

約数列:

[1, 2, 4, 19, 38, 76, 251, 502, 991, 1004, 1982, 3964, 4769, 9538, 18829, 19076, 37658, 75316, 248741, 497482, 994964, 4726079, 9452158, 18904316]

約数ペア:

[(1, 18904316), (2, 9452158), (4, 4726079), (19, 994964), (38, 497482), (76, 248741), (251, 75316), (502, 37658), (991, 19076), (1004, 18829), (1982, 9538), (3964, 4769)]