21180496677

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1033}}^1\times {\mathrm{5897}}^1$

素因数の和:7013

約数の個数: 32

約数和(自身を含む): 30248718720

約数和(自身を除く): 9068222043

約数列:

[1, 3, 19, 57, 61, 183, 1033, 1159, 3099, 3477, 5897, 17691, 19627, 58881, 63013, 112043, 189039, 336129, 359717, 1079151, 1197247, 3591741, 6091601, 6834623, 18274803, 20503869, 115740419, 347221257, 371587661, 1114762983, 7060165559, 21180496677]

約数ペア:

[(1, 21180496677), (3, 7060165559), (19, 1114762983), (57, 371587661), (61, 347221257), (183, 115740419), (1033, 20503869), (1159, 18274803), (3099, 6834623), (3477, 6091601), (5897, 3591741), (17691, 1197247), (19627, 1079151), (58881, 359717), (63013, 336129), (112043, 189039)]