18781356

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{541}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 48077568

約数和(自身を除く): 29296212

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 263, 526, 541, 789, 1052, 1082, 1578, 1623, 2164, 2893, 3156, 3246, 5786, 5951, 6492, 8679, 11572, 11902, 17358, 17853, 23804, 34716, 35706, 71412, 142283, 284566, 426849, 569132, 853698, 1565113, 1707396, 3130226, 4695339, 6260452, 9390678, 18781356]

約数ペア:

[(1, 18781356), (2, 9390678), (3, 6260452), (4, 4695339), (6, 3130226), (11, 1707396), (12, 1565113), (22, 853698), (33, 569132), (44, 426849), (66, 284566), (132, 142283), (263, 71412), (526, 35706), (541, 34716), (789, 23804), (1052, 17853), (1082, 17358), (1578, 11902), (1623, 11572), (2164, 8679), (2893, 6492), (3156, 5951), (3246, 5786)]