20798463

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 35366400

約数和(自身を除く): 14567937

約数列:

[1, 3, 7, 17, 21, 23, 51, 69, 119, 149, 161, 289, 357, 391, 447, 483, 867, 1043, 1173, 2023, 2533, 2737, 3129, 3427, 6069, 6647, 7599, 8211, 10281, 17731, 19941, 23989, 43061, 46529, 53193, 58259, 71967, 129183, 139587, 174777, 301427, 407813, 904281, 990403, 1223439, 2971209, 6932821, 20798463]

約数ペア:

[(1, 20798463), (3, 6932821), (7, 2971209), (17, 1223439), (21, 990403), (23, 904281), (51, 407813), (69, 301427), (119, 174777), (149, 139587), (161, 129183), (289, 71967), (357, 58259), (391, 53193), (447, 46529), (483, 43061), (867, 23989), (1043, 19941), (1173, 17731), (2023, 10281), (2533, 8211), (2737, 7599), (3129, 6647), (3427, 6069)]