28428218

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8221}}^1$

素因数の和:8262

約数の個数: 32

約数和(自身を含む): 55251840

約数和(自身を除く): 26823622

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 8221, 16442, 57547, 106873, 115094, 156199, 213746, 312398, 748111, 1093393, 1496222, 2030587, 2186786, 4061174, 14214109, 28428218]

約数ペア:

[(1, 28428218), (2, 14214109), (7, 4061174), (13, 2186786), (14, 2030587), (19, 1496222), (26, 1093393), (38, 748111), (91, 312398), (133, 213746), (182, 156199), (247, 115094), (266, 106873), (494, 57547), (1729, 16442), (3458, 8221)]