28406007

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1249}}^1$

素因数の和:1300

約数の個数: 36

約数和(自身を含む): 49530000

約数和(自身を除く): 21123993

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 1083, 1197, 1249, 2527, 3249, 3747, 7581, 8743, 11241, 22743, 23731, 26229, 71193, 78687, 166117, 213579, 450889, 498351, 1352667, 1495053, 3156223, 4058001, 9468669, 28406007]

約数ペア:

[(1, 28406007), (3, 9468669), (7, 4058001), (9, 3156223), (19, 1495053), (21, 1352667), (57, 498351), (63, 450889), (133, 213579), (171, 166117), (361, 78687), (399, 71193), (1083, 26229), (1197, 23731), (1249, 22743), (2527, 11241), (3249, 8743), (3747, 7581)]