18143955

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21221}}^1$

素因数の和:21251

約数の個数: 24

約数和(自身を含む): 33106320

約数和(自身を除く): 14962365

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 21221, 63663, 106105, 190989, 318315, 403199, 954945, 1209597, 2015995, 3628791, 6047985, 18143955]

約数ペア:

[(1, 18143955), (3, 6047985), (5, 3628791), (9, 2015995), (15, 1209597), (19, 954945), (45, 403199), (57, 318315), (95, 190989), (171, 106105), (285, 63663), (855, 21221)]