19689390

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31253}}^1$

素因数の和:31273

約数の個数: 48

約数和(自身を含む): 58507488

約数和(自身を除く): 38818098

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31253, 62506, 93759, 156265, 187518, 218771, 281277, 312530, 437542, 468795, 562554, 656313, 937590, 1093855, 1312626, 1406385, 1968939, 2187710, 2812770, 3281565, 3937878, 6563130, 9844695, 19689390]

約数ペア:

[(1, 19689390), (2, 9844695), (3, 6563130), (5, 3937878), (6, 3281565), (7, 2812770), (9, 2187710), (10, 1968939), (14, 1406385), (15, 1312626), (18, 1093855), (21, 937590), (30, 656313), (35, 562554), (42, 468795), (45, 437542), (63, 312530), (70, 281277), (90, 218771), (105, 187518), (126, 156265), (210, 93759), (315, 62506), (630, 31253)]