19964763

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1283}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 37390080

約数和(自身を除く): 17425317

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1283, 1729, 2223, 3849, 5187, 8981, 11547, 15561, 16679, 24377, 26943, 50037, 73131, 80829, 116753, 150111, 170639, 219393, 316901, 350259, 511917, 950703, 1050777, 1535751, 2218307, 2852109, 6654921, 19964763]

約数ペア:

[(1, 19964763), (3, 6654921), (7, 2852109), (9, 2218307), (13, 1535751), (19, 1050777), (21, 950703), (39, 511917), (57, 350259), (63, 316901), (91, 219393), (117, 170639), (133, 150111), (171, 116753), (247, 80829), (273, 73131), (399, 50037), (741, 26943), (819, 24377), (1197, 16679), (1283, 15561), (1729, 11547), (2223, 8981), (3849, 5187)]