64540791

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4721}}^1$

素因数の和:4772

約数の個数: 36

約数和(自身を含む): 111968064

約数和(自身を除く): 47427273

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 217, 279, 441, 651, 1519, 1953, 4557, 4721, 13671, 14163, 33047, 42489, 99141, 146351, 231329, 297423, 439053, 693987, 1024457, 1317159, 2081961, 3073371, 7171199, 9220113, 21513597, 64540791]

約数ペア:

[(1, 64540791), (3, 21513597), (7, 9220113), (9, 7171199), (21, 3073371), (31, 2081961), (49, 1317159), (63, 1024457), (93, 693987), (147, 439053), (217, 297423), (279, 231329), (441, 146351), (651, 99141), (1519, 42489), (1953, 33047), (4557, 14163), (4721, 13671)]