21393086

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{571}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 38054016

約数和(自身を除く): 16660930

約数列:

[1, 2, 11, 13, 22, 26, 131, 143, 262, 286, 571, 1142, 1441, 1703, 2882, 3406, 6281, 7423, 12562, 14846, 18733, 37466, 74801, 81653, 149602, 163306, 822811, 972413, 1645622, 1944826, 10696543, 21393086]

約数ペア:

[(1, 21393086), (2, 10696543), (11, 1944826), (13, 1645622), (22, 972413), (26, 822811), (131, 163306), (143, 149602), (262, 81653), (286, 74801), (571, 37466), (1142, 18733), (1441, 14846), (1703, 12562), (2882, 7423), (3406, 6281)]