20819253

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{76261}}^1$

素因数の和:76284

約数の個数: 16

約数和(自身を含む): 34165376

約数和(自身を除く): 13346123

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 76261, 228783, 533827, 991393, 1601481, 2974179, 6939751, 20819253]

約数ペア:

[(1, 20819253), (3, 6939751), (7, 2974179), (13, 1601481), (21, 991393), (39, 533827), (91, 228783), (273, 76261)]