20165223

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{3947}}^1$

素因数の和:4094

約数の個数: 16

約数和(自身を含む): 29183616

約数和(自身を除く): 9018393

約数列:

[1, 3, 13, 39, 131, 393, 1703, 3947, 5109, 11841, 51311, 153933, 517057, 1551171, 6721741, 20165223]

約数ペア:

[(1, 20165223), (3, 6721741), (13, 1551171), (39, 517057), (131, 153933), (393, 51311), (1703, 11841), (3947, 5109)]