18487779

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 27156480

約数和(自身を除く): 8668701

約数列:

[1, 3, 19, 47, 57, 67, 103, 141, 201, 309, 893, 1273, 1957, 2679, 3149, 3819, 4841, 5871, 6901, 9447, 14523, 20703, 59831, 91979, 131119, 179493, 275937, 324347, 393357, 973041, 6162593, 18487779]

約数ペア:

[(1, 18487779), (3, 6162593), (19, 973041), (47, 393357), (57, 324347), (67, 275937), (103, 179493), (141, 131119), (201, 91979), (309, 59831), (893, 20703), (1273, 14523), (1957, 9447), (2679, 6901), (3149, 5871), (3819, 4841)]