19987128

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{13219}}^1$

素因数の和:13241

約数の個数: 64

約数和(自身を含む): 63456000

約数和(自身を除く): 43468872

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 756, 1512, 13219, 26438, 39657, 52876, 79314, 92533, 105752, 118971, 158628, 185066, 237942, 277599, 317256, 356913, 370132, 475884, 555198, 713826, 740264, 832797, 951768, 1110396, 1427652, 1665594, 2220792, 2498391, 2855304, 3331188, 4996782, 6662376, 9993564, 19987128]

約数ペア:

[(1, 19987128), (2, 9993564), (3, 6662376), (4, 4996782), (6, 3331188), (7, 2855304), (8, 2498391), (9, 2220792), (12, 1665594), (14, 1427652), (18, 1110396), (21, 951768), (24, 832797), (27, 740264), (28, 713826), (36, 555198), (42, 475884), (54, 370132), (56, 356913), (63, 317256), (72, 277599), (84, 237942), (108, 185066), (126, 158628), (168, 118971), (189, 105752), (216, 92533), (252, 79314), (378, 52876), (504, 39657), (756, 26438), (1512, 13219)]