21975172

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1453}}^1$

素因数の和:1675

約数の個数: 24

約数和(自身を含む): 40712000

約数和(自身を除く): 18736828

約数列:

[1, 2, 4, 19, 38, 76, 199, 398, 796, 1453, 2906, 3781, 5812, 7562, 15124, 27607, 55214, 110428, 289147, 578294, 1156588, 5493793, 10987586, 21975172]

約数ペア:

[(1, 21975172), (2, 10987586), (4, 5493793), (19, 1156588), (38, 578294), (76, 289147), (199, 110428), (398, 55214), (796, 27607), (1453, 15124), (2906, 7562), (3781, 5812)]