28540491

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{6263}}^1$

素因数の和:6311

約数の個数: 24

約数和(自身を含む): 45702144

約数和(自身を除く): 17161653

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 6263, 18789, 43841, 131523, 194153, 306887, 582459, 920661, 1359071, 4077213, 9513497, 28540491]

約数ペア:

[(1, 28540491), (3, 9513497), (7, 4077213), (21, 1359071), (31, 920661), (49, 582459), (93, 306887), (147, 194153), (217, 131523), (651, 43841), (1519, 18789), (4557, 6263)]