28168803

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 46862816

約数和(自身を除く): 18694013

約数列:

[1, 3, 9, 13, 27, 37, 39, 81, 111, 117, 241, 243, 333, 351, 481, 723, 999, 1053, 1443, 2169, 2997, 3133, 3159, 4329, 6507, 8917, 8991, 9399, 12987, 19521, 26751, 28197, 38961, 58563, 80253, 84591, 115921, 116883, 240759, 253773, 347763, 722277, 761319, 1043289, 2166831, 3129867, 9389601, 28168803]

約数ペア:

[(1, 28168803), (3, 9389601), (9, 3129867), (13, 2166831), (27, 1043289), (37, 761319), (39, 722277), (81, 347763), (111, 253773), (117, 240759), (241, 116883), (243, 115921), (333, 84591), (351, 80253), (481, 58563), (723, 38961), (999, 28197), (1053, 26751), (1443, 19521), (2169, 12987), (2997, 9399), (3133, 8991), (3159, 8917), (4329, 6507)]