2591757

素因数分解:

$3^4\times 7^2\times {\mathrm{653}}^1$

素因数の和:679

約数の個数: 30

約数和(自身を含む): 4510638

約数和(自身を除く): 1918881

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 653, 1323, 1959, 3969, 4571, 5877, 13713, 17631, 31997, 41139, 52893, 95991, 123417, 287973, 370251, 863919, 2591757]

約数ペア:

[(1, 2591757), (3, 863919), (7, 370251), (9, 287973), (21, 123417), (27, 95991), (49, 52893), (63, 41139), (81, 31997), (147, 17631), (189, 13713), (441, 5877), (567, 4571), (653, 3969), (1323, 1959)]