19500555

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1291}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 33488640

約数和(自身を除く): 13988085

約数列:

[1, 3, 5, 15, 19, 53, 57, 95, 159, 265, 285, 795, 1007, 1291, 3021, 3873, 5035, 6455, 15105, 19365, 24529, 68423, 73587, 122645, 205269, 342115, 367935, 1026345, 1300037, 3900111, 6500185, 19500555]

約数ペア:

[(1, 19500555), (3, 6500185), (5, 3900111), (15, 1300037), (19, 1026345), (53, 367935), (57, 342115), (95, 205269), (159, 122645), (265, 73587), (285, 68423), (795, 24529), (1007, 19365), (1291, 15105), (3021, 6455), (3873, 5035)]