19999656

素因数分解:

$2^3\times 3^3\times {\mathrm{53}}^1\times {\mathrm{1747}}^1$

素因数の和:1815

約数の個数: 64

約数和(自身を含む): 56635200

約数和(自身を除く): 36635544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 53, 54, 72, 106, 108, 159, 212, 216, 318, 424, 477, 636, 954, 1272, 1431, 1747, 1908, 2862, 3494, 3816, 5241, 5724, 6988, 10482, 11448, 13976, 15723, 20964, 31446, 41928, 47169, 62892, 92591, 94338, 125784, 185182, 188676, 277773, 370364, 377352, 555546, 740728, 833319, 1111092, 1666638, 2222184, 2499957, 3333276, 4999914, 6666552, 9999828, 19999656]

約数ペア:

[(1, 19999656), (2, 9999828), (3, 6666552), (4, 4999914), (6, 3333276), (8, 2499957), (9, 2222184), (12, 1666638), (18, 1111092), (24, 833319), (27, 740728), (36, 555546), (53, 377352), (54, 370364), (72, 277773), (106, 188676), (108, 185182), (159, 125784), (212, 94338), (216, 92591), (318, 62892), (424, 47169), (477, 41928), (636, 31446), (954, 20964), (1272, 15723), (1431, 13976), (1747, 11448), (1908, 10482), (2862, 6988), (3494, 5724), (3816, 5241)]