21968163

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1459}}^1$

素因数の和:1711

約数の個数: 24

約数和(自身を含む): 36441600

約数和(自身を除く): 14473437

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1459, 1673, 2151, 4377, 5019, 10213, 13131, 15057, 30639, 91917, 348701, 1046103, 2440907, 3138309, 7322721, 21968163]

約数ペア:

[(1, 21968163), (3, 7322721), (7, 3138309), (9, 2440907), (21, 1046103), (63, 348701), (239, 91917), (717, 30639), (1459, 15057), (1673, 13131), (2151, 10213), (4377, 5019)]