20026643

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 25376400

約数和(自身を除く): 5349757

約数列:

[1, 7, 13, 49, 91, 149, 211, 637, 1043, 1477, 1937, 2743, 7301, 10339, 13559, 19201, 31439, 94913, 134407, 220073, 408707, 1540511, 2860949, 20026643]

約数ペア:

[(1, 20026643), (7, 2860949), (13, 1540511), (49, 408707), (91, 220073), (149, 134407), (211, 94913), (637, 31439), (1043, 19201), (1477, 13559), (1937, 10339), (2743, 7301)]