21928223

素因数分解:

${\mathrm{19}}^3\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 16

約数和(自身を含む): 24326400

約数和(自身を除く): 2398177

約数列:

[1, 19, 23, 139, 361, 437, 2641, 3197, 6859, 8303, 50179, 60743, 157757, 953401, 1154117, 21928223]

約数ペア:

[(1, 21928223), (19, 1154117), (23, 953401), (139, 157757), (361, 60743), (437, 50179), (2641, 8303), (3197, 6859)]