20221439

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 25712640

約数和(自身を除く): 5491201

約数列:

[1, 7, 23, 29, 61, 71, 161, 203, 427, 497, 667, 1403, 1633, 1769, 2059, 4331, 4669, 9821, 11431, 12383, 14413, 30317, 40687, 47357, 99613, 125599, 284809, 331499, 697291, 879193, 2888777, 20221439]

約数ペア:

[(1, 20221439), (7, 2888777), (23, 879193), (29, 697291), (61, 331499), (71, 284809), (161, 125599), (203, 99613), (427, 47357), (497, 40687), (667, 30317), (1403, 14413), (1633, 12383), (1769, 11431), (2059, 9821), (4331, 4669)]