21221838

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{11909}}^1$

素因数の和:11934

約数の個数: 40

約数和(自身を含む): 51879960

約数和(自身を除く): 30658122

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 81, 99, 162, 198, 297, 594, 891, 1782, 11909, 23818, 35727, 71454, 107181, 130999, 214362, 261998, 321543, 392997, 643086, 785994, 964629, 1178991, 1929258, 2357982, 3536973, 7073946, 10610919, 21221838]

約数ペア:

[(1, 21221838), (2, 10610919), (3, 7073946), (6, 3536973), (9, 2357982), (11, 1929258), (18, 1178991), (22, 964629), (27, 785994), (33, 643086), (54, 392997), (66, 321543), (81, 261998), (99, 214362), (162, 130999), (198, 107181), (297, 71454), (594, 35727), (891, 23818), (1782, 11909)]