18874611

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2287}}^1$

素因数の和:2431

約数の個数: 24

約数和(自身を含む): 31409664

約数和(自身を除く): 12535053

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2287, 2751, 6861, 8253, 16009, 20583, 48027, 144081, 299597, 898791, 2097179, 2696373, 6291537, 18874611]

約数ペア:

[(1, 18874611), (3, 6291537), (7, 2696373), (9, 2097179), (21, 898791), (63, 299597), (131, 144081), (393, 48027), (917, 20583), (1179, 16009), (2287, 8253), (2751, 6861)]