1720688319

素因数分解:

$3^3\times 7^1\times {\mathrm{2753}}^1\times {\mathrm{3307}}^1$

素因数の和:6076

約数の個数: 32

約数和(自身を含む): 2915274240

約数和(自身を除く): 1194585921

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 2753, 3307, 8259, 9921, 19271, 23149, 24777, 29763, 57813, 69447, 74331, 89289, 173439, 208341, 520317, 625023, 9104171, 27312513, 63729197, 81937539, 191187591, 245812617, 573562773, 1720688319]

約数ペア:

[(1, 1720688319), (3, 573562773), (7, 245812617), (9, 191187591), (21, 81937539), (27, 63729197), (63, 27312513), (189, 9104171), (2753, 625023), (3307, 520317), (8259, 208341), (9921, 173439), (19271, 89289), (23149, 74331), (24777, 69447), (29763, 57813)]