291289257

素因数分解:

$3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17317}}^1$

素因数の和:17422

約数の個数: 32

約数和(自身を含む): 498758400

約数和(自身を除く): 207469143

約数列:

[1, 3, 7, 9, 21, 27, 63, 89, 189, 267, 623, 801, 1869, 2403, 5607, 16821, 17317, 51951, 121219, 155853, 363657, 467559, 1090971, 1541213, 3272913, 4623639, 10788491, 13870917, 32365473, 41612751, 97096419, 291289257]

約数ペア:

[(1, 291289257), (3, 97096419), (7, 41612751), (9, 32365473), (21, 13870917), (27, 10788491), (63, 4623639), (89, 3272913), (189, 1541213), (267, 1090971), (623, 467559), (801, 363657), (1869, 155853), (2403, 121219), (5607, 51951), (16821, 17317)]