19461981

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{487}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 32606208

約数和(自身を除く): 13144227

約数列:

[1, 3, 7, 11, 21, 33, 77, 173, 231, 487, 519, 1211, 1461, 1903, 3409, 3633, 5357, 5709, 10227, 13321, 16071, 37499, 39963, 84251, 112497, 252753, 589757, 926761, 1769271, 2780283, 6487327, 19461981]

約数ペア:

[(1, 19461981), (3, 6487327), (7, 2780283), (11, 1769271), (21, 926761), (33, 589757), (77, 252753), (173, 112497), (231, 84251), (487, 39963), (519, 37499), (1211, 16071), (1461, 13321), (1903, 10227), (3409, 5709), (3633, 5357)]