21235554

素因数分解:

$2^1\times 3^3\times {\mathrm{73}}^1\times {\mathrm{5387}}^1$

素因数の和:5471

約数の個数: 32

約数和(自身を含む): 47845440

約数和(自身を除く): 26609886

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 146, 219, 438, 657, 1314, 1971, 3942, 5387, 10774, 16161, 32322, 48483, 96966, 145449, 290898, 393251, 786502, 1179753, 2359506, 3539259, 7078518, 10617777, 21235554]

約数ペア:

[(1, 21235554), (2, 10617777), (3, 7078518), (6, 3539259), (9, 2359506), (18, 1179753), (27, 786502), (54, 393251), (73, 290898), (146, 145449), (219, 96966), (438, 48483), (657, 32322), (1314, 16161), (1971, 10774), (3942, 5387)]