218698815

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{1187}}^1$

素因数の和:1439

約数の個数: 32

約数和(自身を含む): 357198336

約数和(自身を除く): 138499521

約数列:

[1, 3, 5, 15, 71, 173, 213, 355, 519, 865, 1065, 1187, 2595, 3561, 5935, 12283, 17805, 36849, 61415, 84277, 184245, 205351, 252831, 421385, 616053, 1026755, 1264155, 3080265, 14579921, 43739763, 72899605, 218698815]

約数ペア:

[(1, 218698815), (3, 72899605), (5, 43739763), (15, 14579921), (71, 3080265), (173, 1264155), (213, 1026755), (355, 616053), (519, 421385), (865, 252831), (1065, 205351), (1187, 184245), (2595, 84277), (3561, 61415), (5935, 36849), (12283, 17805)]