21010444

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 45638208

約数和(自身を除く): 24627764

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 197, 293, 364, 394, 586, 788, 1172, 1379, 2051, 2561, 2758, 3809, 4102, 5122, 5516, 7618, 8204, 10244, 15236, 17927, 26663, 35854, 53326, 57721, 71708, 106652, 115442, 230884, 404047, 750373, 808094, 1500746, 1616188, 3001492, 5252611, 10505222, 21010444]

約数ペア:

[(1, 21010444), (2, 10505222), (4, 5252611), (7, 3001492), (13, 1616188), (14, 1500746), (26, 808094), (28, 750373), (52, 404047), (91, 230884), (182, 115442), (197, 106652), (293, 71708), (364, 57721), (394, 53326), (586, 35854), (788, 26663), (1172, 17927), (1379, 15236), (2051, 10244), (2561, 8204), (2758, 7618), (3809, 5516), (4102, 5122)]