28536081

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 49412160

約数和(自身を除く): 20876079

約数列:

[1, 3, 7, 17, 19, 21, 49, 51, 57, 119, 133, 147, 323, 357, 399, 601, 833, 931, 969, 1803, 2261, 2499, 2793, 4207, 6783, 10217, 11419, 12621, 15827, 29449, 30651, 34257, 47481, 71519, 79933, 88347, 194123, 214557, 239799, 500633, 559531, 582369, 1358861, 1501899, 1678593, 4076583, 9512027, 28536081]

約数ペア:

[(1, 28536081), (3, 9512027), (7, 4076583), (17, 1678593), (19, 1501899), (21, 1358861), (49, 582369), (51, 559531), (57, 500633), (119, 239799), (133, 214557), (147, 194123), (323, 88347), (357, 79933), (399, 71519), (601, 47481), (833, 34257), (931, 30651), (969, 29449), (1803, 15827), (2261, 12621), (2499, 11419), (2793, 10217), (4207, 6783)]