28907021

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 38610432

約数和(自身を除く): 9703411

約数列:

[1, 11, 13, 17, 23, 47, 121, 143, 187, 221, 253, 299, 391, 517, 611, 799, 1081, 1573, 2057, 2431, 2783, 3289, 4301, 5083, 5687, 6721, 8789, 10387, 11891, 14053, 18377, 26741, 36179, 47311, 55913, 73931, 96679, 114257, 130801, 154583, 202147, 238901, 615043, 1256827, 1700413, 2223617, 2627911, 28907021]

約数ペア:

[(1, 28907021), (11, 2627911), (13, 2223617), (17, 1700413), (23, 1256827), (47, 615043), (121, 238901), (143, 202147), (187, 154583), (221, 130801), (253, 114257), (299, 96679), (391, 73931), (517, 55913), (611, 47311), (799, 36179), (1081, 26741), (1573, 18377), (2057, 14053), (2431, 11891), (2783, 10387), (3289, 8789), (4301, 6721), (5083, 5687)]