20395854

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 48422400

約数和(自身を除く): 28026546

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 103, 114, 171, 193, 206, 309, 342, 386, 513, 579, 618, 927, 1026, 1158, 1737, 1854, 1957, 2781, 3474, 3667, 3914, 5211, 5562, 5871, 7334, 10422, 11001, 11742, 17613, 19879, 22002, 33003, 35226, 39758, 52839, 59637, 66006, 99009, 105678, 119274, 178911, 198018, 357822, 377701, 536733, 755402, 1073466, 1133103, 2266206, 3399309, 6798618, 10197927, 20395854]

約数ペア:

[(1, 20395854), (2, 10197927), (3, 6798618), (6, 3399309), (9, 2266206), (18, 1133103), (19, 1073466), (27, 755402), (38, 536733), (54, 377701), (57, 357822), (103, 198018), (114, 178911), (171, 119274), (193, 105678), (206, 99009), (309, 66006), (342, 59637), (386, 52839), (513, 39758), (579, 35226), (618, 33003), (927, 22002), (1026, 19879), (1158, 17613), (1737, 11742), (1854, 11001), (1957, 10422), (2781, 7334), (3474, 5871), (3667, 5562), (3914, 5211)]