21982411

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 6011189

約数列:

[1, 11, 17, 19, 23, 187, 209, 253, 269, 323, 391, 437, 2959, 3553, 4301, 4573, 4807, 5111, 6187, 7429, 50303, 56221, 68057, 81719, 86887, 105179, 117553, 955757, 1156969, 1293083, 1998401, 21982411]

約数ペア:

[(1, 21982411), (11, 1998401), (17, 1293083), (19, 1156969), (23, 955757), (187, 117553), (209, 105179), (253, 86887), (269, 81719), (323, 68057), (391, 56221), (437, 50303), (2959, 7429), (3553, 6187), (4301, 5111), (4573, 4807)]