28198359

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 49937472

約数和(自身を除く): 21739113

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 113, 119, 153, 233, 339, 357, 699, 791, 1017, 1071, 1631, 1921, 2097, 2373, 3961, 4893, 5763, 7119, 11883, 13447, 14679, 17289, 26329, 27727, 35649, 40341, 78987, 83181, 121023, 184303, 236961, 249543, 447593, 552909, 1342779, 1658727, 3133151, 4028337, 9399453, 28198359]

約数ペア:

[(1, 28198359), (3, 9399453), (7, 4028337), (9, 3133151), (17, 1658727), (21, 1342779), (51, 552909), (63, 447593), (113, 249543), (119, 236961), (153, 184303), (233, 121023), (339, 83181), (357, 78987), (699, 40341), (791, 35649), (1017, 27727), (1071, 26329), (1631, 17289), (1921, 14679), (2097, 13447), (2373, 11883), (3961, 7119), (4893, 5763)]