21302827

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1787}}^1$

素因数の和:1938

約数の個数: 16

約数和(自身を含む): 26433792

約数和(自身を除く): 5130965

約数列:

[1, 7, 13, 91, 131, 917, 1703, 1787, 11921, 12509, 23231, 162617, 234097, 1638679, 3043261, 21302827]

約数ペア:

[(1, 21302827), (7, 3043261), (13, 1638679), (91, 234097), (131, 162617), (917, 23231), (1703, 12509), (1787, 11921)]