20915874

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{55333}}^1$

素因数の和:55351

約数の個数: 32

約数和(自身を含む): 53120640

約数和(自身を除く): 32204766

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 55333, 110666, 165999, 331998, 387331, 497997, 774662, 995994, 1161993, 1493991, 2323986, 2987982, 3485979, 6971958, 10457937, 20915874]

約数ペア:

[(1, 20915874), (2, 10457937), (3, 6971958), (6, 3485979), (7, 2987982), (9, 2323986), (14, 1493991), (18, 1161993), (21, 995994), (27, 774662), (42, 497997), (54, 387331), (63, 331998), (126, 165999), (189, 110666), (378, 55333)]