64990737

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 110747520

約数和(自身を除く): 45756783

約数列:

[1, 3, 7, 9, 21, 63, 67, 89, 173, 201, 267, 469, 519, 603, 623, 801, 1211, 1407, 1557, 1869, 3633, 4221, 5607, 5963, 10899, 11591, 15397, 17889, 34773, 41741, 46191, 53667, 81137, 104319, 107779, 125223, 138573, 243411, 323337, 375669, 730233, 970011, 1031599, 3094797, 7221193, 9284391, 21663579, 64990737]

約数ペア:

[(1, 64990737), (3, 21663579), (7, 9284391), (9, 7221193), (21, 3094797), (63, 1031599), (67, 970011), (89, 730233), (173, 375669), (201, 323337), (267, 243411), (469, 138573), (519, 125223), (603, 107779), (623, 104319), (801, 81137), (1211, 53667), (1407, 46191), (1557, 41741), (1869, 34773), (3633, 17889), (4221, 15397), (5607, 11591), (5963, 10899)]