19686884

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{701}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 22770076

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 59, 68, 118, 119, 236, 238, 413, 476, 701, 826, 1003, 1402, 1652, 2006, 2804, 4012, 4907, 7021, 9814, 11917, 14042, 19628, 23834, 28084, 41359, 47668, 82718, 83419, 165436, 166838, 289513, 333676, 579026, 703103, 1158052, 1406206, 2812412, 4921721, 9843442, 19686884]

約数ペア:

[(1, 19686884), (2, 9843442), (4, 4921721), (7, 2812412), (14, 1406206), (17, 1158052), (28, 703103), (34, 579026), (59, 333676), (68, 289513), (118, 166838), (119, 165436), (236, 83419), (238, 82718), (413, 47668), (476, 41359), (701, 28084), (826, 23834), (1003, 19628), (1402, 14042), (1652, 11917), (2006, 9814), (2804, 7021), (4012, 4907)]