21553029

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1153}}^1$

素因数の和:1257

約数の個数: 24

約数和(自身を含む): 32644352

約数和(自身を除く): 11091323

約数列:

[1, 3, 9, 31, 67, 93, 201, 279, 603, 1153, 2077, 3459, 6231, 10377, 18693, 35743, 77251, 107229, 231753, 321687, 695259, 2394781, 7184343, 21553029]

約数ペア:

[(1, 21553029), (3, 7184343), (9, 2394781), (31, 695259), (67, 321687), (93, 231753), (201, 107229), (279, 77251), (603, 35743), (1153, 18693), (2077, 10377), (3459, 6231)]