21080494072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{307511}}^1$

素因数の和:307588

約数の個数: 64

約数和(自身を含む): 46495814400

約数和(自身を除く): 25415320328

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 41, 44, 76, 82, 88, 152, 164, 209, 328, 418, 451, 779, 836, 902, 1558, 1672, 1804, 3116, 3608, 6232, 8569, 17138, 34276, 68552, 307511, 615022, 1230044, 2460088, 3382621, 5842709, 6765242, 11685418, 12607951, 13530484, 23370836, 25215902, 27060968, 46741672, 50431804, 64269799, 100863608, 128539598, 138687461, 239551069, 257079196, 277374922, 479102138, 514158392, 554749844, 958204276, 1109499688, 1916408552, 2635061759, 5270123518, 10540247036, 21080494072]

約数ペア:

[(1, 21080494072), (2, 10540247036), (4, 5270123518), (8, 2635061759), (11, 1916408552), (19, 1109499688), (22, 958204276), (38, 554749844), (41, 514158392), (44, 479102138), (76, 277374922), (82, 257079196), (88, 239551069), (152, 138687461), (164, 128539598), (209, 100863608), (328, 64269799), (418, 50431804), (451, 46741672), (779, 27060968), (836, 25215902), (902, 23370836), (1558, 13530484), (1672, 12607951), (1804, 11685418), (3116, 6765242), (3608, 5842709), (6232, 3382621), (8569, 2460088), (17138, 1230044), (34276, 615022), (68552, 307511)]