28781454

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{11903}}^1$

素因数の和:11952

約数の個数: 32

約数和(自身を含む): 63995904

約数和(自身を除く): 35214450

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 11903, 23806, 35709, 71418, 154739, 309478, 368993, 464217, 737986, 928434, 1106979, 2213958, 4796909, 9593818, 14390727, 28781454]

約数ペア:

[(1, 28781454), (2, 14390727), (3, 9593818), (6, 4796909), (13, 2213958), (26, 1106979), (31, 928434), (39, 737986), (62, 464217), (78, 368993), (93, 309478), (186, 154739), (403, 71418), (806, 35709), (1209, 23806), (2418, 11903)]