19321978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:526

約数の個数: 32

約数和(自身を含む): 33062400

約数和(自身を除く): 13740422

約数列:

[1, 2, 13, 23, 26, 46, 79, 158, 299, 409, 598, 818, 1027, 1817, 2054, 3634, 5317, 9407, 10634, 18814, 23621, 32311, 47242, 64622, 122291, 244582, 420043, 743153, 840086, 1486306, 9660989, 19321978]

約数ペア:

[(1, 19321978), (2, 9660989), (13, 1486306), (23, 840086), (26, 743153), (46, 420043), (79, 244582), (158, 122291), (299, 64622), (409, 47242), (598, 32311), (818, 23621), (1027, 18814), (1817, 10634), (2054, 9407), (3634, 5317)]