18279987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 9589197

約数列:

[1, 3, 11, 31, 33, 93, 107, 167, 321, 341, 501, 1023, 1177, 1837, 3317, 3531, 5177, 5511, 9951, 15531, 17869, 36487, 53607, 56947, 109461, 170841, 196559, 553939, 589677, 1661817, 6093329, 18279987]

約数ペア:

[(1, 18279987), (3, 6093329), (11, 1661817), (31, 589677), (33, 553939), (93, 196559), (107, 170841), (167, 109461), (321, 56947), (341, 53607), (501, 36487), (1023, 17869), (1177, 15531), (1837, 9951), (3317, 5511), (3531, 5177)]