72808491

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{1153}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 115806208

約数和(自身を除く): 42997717

約数列:

[1, 3, 7, 21, 31, 93, 97, 217, 291, 651, 679, 1153, 2037, 3007, 3459, 8071, 9021, 21049, 24213, 35743, 63147, 107229, 111841, 250201, 335523, 750603, 782887, 2348661, 3467071, 10401213, 24269497, 72808491]

約数ペア:

[(1, 72808491), (3, 24269497), (7, 10401213), (21, 3467071), (31, 2348661), (93, 782887), (97, 750603), (217, 335523), (291, 250201), (651, 111841), (679, 107229), (1153, 63147), (2037, 35743), (3007, 24213), (3459, 21049), (8071, 9021)]