18636921

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1$

素因数の和:1101

約数の個数: 24

約数和(自身を含む): 28231424

約数和(自身を除く): 9594503

約数列:

[1, 3, 9, 31, 67, 93, 201, 279, 603, 997, 2077, 2991, 6231, 8973, 18693, 30907, 66799, 92721, 200397, 278163, 601191, 2070769, 6212307, 18636921]

約数ペア:

[(1, 18636921), (3, 6212307), (9, 2070769), (31, 601191), (67, 278163), (93, 200397), (201, 92721), (279, 66799), (603, 30907), (997, 18693), (2077, 8973), (2991, 6231)]