1640891007

素因数分解:

$3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{118931}}^1$

素因数の和:119020

約数の個数: 32

約数和(自身を含む): 2816309760

約数和(自身を除く): 1175418753

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1533, 1971, 4599, 13797, 118931, 356793, 832517, 1070379, 2497551, 3211137, 7492653, 8681963, 22477959, 26045889, 60773741, 78137667, 182321223, 234413001, 546963669, 1640891007]

約数ペア:

[(1, 1640891007), (3, 546963669), (7, 234413001), (9, 182321223), (21, 78137667), (27, 60773741), (63, 26045889), (73, 22477959), (189, 8681963), (219, 7492653), (511, 3211137), (657, 2497551), (1533, 1070379), (1971, 832517), (4599, 356793), (13797, 118931)]