20756358

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1277}}^1$

素因数の和:1338

約数の個数: 64

約数和(自身を含む): 53982720

約数和(自身を除く): 33226362

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 43, 54, 63, 86, 126, 129, 189, 258, 301, 378, 387, 602, 774, 903, 1161, 1277, 1806, 2322, 2554, 2709, 3831, 5418, 7662, 8127, 8939, 11493, 16254, 17878, 22986, 26817, 34479, 53634, 54911, 68958, 80451, 109822, 160902, 164733, 241353, 329466, 384377, 482706, 494199, 768754, 988398, 1153131, 1482597, 2306262, 2965194, 3459393, 6918786, 10378179, 20756358]

約数ペア:

[(1, 20756358), (2, 10378179), (3, 6918786), (6, 3459393), (7, 2965194), (9, 2306262), (14, 1482597), (18, 1153131), (21, 988398), (27, 768754), (42, 494199), (43, 482706), (54, 384377), (63, 329466), (86, 241353), (126, 164733), (129, 160902), (189, 109822), (258, 80451), (301, 68958), (378, 54911), (387, 53634), (602, 34479), (774, 26817), (903, 22986), (1161, 17878), (1277, 16254), (1806, 11493), (2322, 8939), (2554, 8127), (2709, 7662), (3831, 5418)]