19967157

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2383}}^1$

素因数の和:2422

約数の個数: 36

約数和(自身を含む): 35330880

約数和(自身を除く): 15363723

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2383, 2793, 7149, 8379, 16681, 21447, 45277, 50043, 116767, 135831, 150129, 316939, 350301, 407493, 950817, 1050903, 2218573, 2852451, 6655719, 19967157]

約数ペア:

[(1, 19967157), (3, 6655719), (7, 2852451), (9, 2218573), (19, 1050903), (21, 950817), (49, 407493), (57, 350301), (63, 316939), (133, 150129), (147, 135831), (171, 116767), (399, 50043), (441, 45277), (931, 21447), (1197, 16681), (2383, 8379), (2793, 7149)]