209954511

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{8669}}^1$

素因数の和:8717

約数の個数: 40

約数和(自身を含む): 352487520

約数和(自身を除く): 142533009

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 897, 1053, 1863, 2691, 8073, 8669, 24219, 26007, 78021, 112697, 199387, 234063, 338091, 598161, 702189, 1014273, 1794483, 2592031, 3042819, 5383449, 7776093, 9128457, 16150347, 23328279, 69984837, 209954511]

約数ペア:

[(1, 209954511), (3, 69984837), (9, 23328279), (13, 16150347), (23, 9128457), (27, 7776093), (39, 5383449), (69, 3042819), (81, 2592031), (117, 1794483), (207, 1014273), (299, 702189), (351, 598161), (621, 338091), (897, 234063), (1053, 199387), (1863, 112697), (2691, 78021), (8073, 26007), (8669, 24219)]