18853491

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 28131840

約数和(自身を除く): 9278349

約数列:

[1, 3, 19, 23, 57, 69, 73, 197, 219, 437, 591, 1311, 1387, 1679, 3743, 4161, 4531, 5037, 11229, 13593, 14381, 31901, 43143, 86089, 95703, 258267, 273239, 330763, 819717, 992289, 6284497, 18853491]

約数ペア:

[(1, 18853491), (3, 6284497), (19, 992289), (23, 819717), (57, 330763), (69, 273239), (73, 258267), (197, 95703), (219, 86089), (437, 43143), (591, 31901), (1311, 14381), (1387, 13593), (1679, 11229), (3743, 5037), (4161, 4531)]