261036279

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{20411}}^1$

素因数の和:20460

約数の個数: 36

約数和(自身を含む): 453758760

約数和(自身を除く): 192722481

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1421, 1827, 4263, 12789, 20411, 61233, 142877, 183699, 428631, 591919, 1000139, 1285893, 1775757, 3000417, 4143433, 5327271, 9001251, 12430299, 29004031, 37290897, 87012093, 261036279]

約数ペア:

[(1, 261036279), (3, 87012093), (7, 37290897), (9, 29004031), (21, 12430299), (29, 9001251), (49, 5327271), (63, 4143433), (87, 3000417), (147, 1775757), (203, 1285893), (261, 1000139), (441, 591919), (609, 428631), (1421, 183699), (1827, 142877), (4263, 61233), (12789, 20411)]