1275309

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 2176512

約数和(自身を除く): 901203

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 653, 1953, 1959, 4571, 5877, 13713, 20243, 41139, 60729, 141701, 182187, 425103, 1275309]

約数ペア:

[(1, 1275309), (3, 425103), (7, 182187), (9, 141701), (21, 60729), (31, 41139), (63, 20243), (93, 13713), (217, 5877), (279, 4571), (651, 1959), (653, 1953)]