287973

素因数分解:

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

素因数の和:673

約数の個数: 18

約数和(自身を含む): 484614

約数和(自身を除く): 196641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 653, 1959, 4571, 5877, 13713, 31997, 41139, 95991, 287973]

約数ペア:

[(1, 287973), (3, 95991), (7, 41139), (9, 31997), (21, 13713), (49, 5877), (63, 4571), (147, 1959), (441, 653)]