19936665

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1$

素因数の和:128

約数の個数: 96

約数和(自身を含む): 43618560

約数和(自身を除く): 23681895

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 73, 85, 105, 119, 135, 153, 189, 219, 255, 289, 315, 357, 365, 459, 511, 595, 657, 765, 867, 945, 1071, 1095, 1241, 1445, 1533, 1785, 1971, 2023, 2295, 2555, 2601, 3213, 3285, 3723, 4335, 4599, 5355, 6069, 6205, 7665, 7803, 8687, 9855, 10115, 11169, 13005, 13797, 16065, 18207, 18615, 21097, 22995, 26061, 30345, 33507, 39015, 43435, 54621, 55845, 63291, 68985, 78183, 91035, 105485, 130305, 147679, 167535, 189873, 234549, 273105, 316455, 390915, 443037, 569619, 738395, 949365, 1172745, 1329111, 2215185, 2848095, 3987333, 6645555, 19936665]

約数ペア:

[(1, 19936665), (3, 6645555), (5, 3987333), (7, 2848095), (9, 2215185), (15, 1329111), (17, 1172745), (21, 949365), (27, 738395), (35, 569619), (45, 443037), (51, 390915), (63, 316455), (73, 273105), (85, 234549), (105, 189873), (119, 167535), (135, 147679), (153, 130305), (189, 105485), (219, 91035), (255, 78183), (289, 68985), (315, 63291), (357, 55845), (365, 54621), (459, 43435), (511, 39015), (595, 33507), (657, 30345), (765, 26061), (867, 22995), (945, 21097), (1071, 18615), (1095, 18207), (1241, 16065), (1445, 13797), (1533, 13005), (1785, 11169), (1971, 10115), (2023, 9855), (2295, 8687), (2555, 7803), (2601, 7665), (3213, 6205), (3285, 6069), (3723, 5355), (4335, 4599)]