28005159

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{607}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 46305280

約数和(自身を除く): 18300121

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 607, 1183, 1821, 2197, 3549, 4249, 6591, 7891, 12747, 15379, 23673, 46137, 55237, 102583, 165711, 307749, 718081, 1333579, 2154243, 4000737, 9335053, 28005159]

約数ペア:

[(1, 28005159), (3, 9335053), (7, 4000737), (13, 2154243), (21, 1333579), (39, 718081), (91, 307749), (169, 165711), (273, 102583), (507, 55237), (607, 46137), (1183, 23673), (1821, 15379), (2197, 12747), (3549, 7891), (4249, 6591)]