261977199

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 408777600

約数和(自身を除く): 146800401

約数列:

[1, 3, 11, 23, 33, 43, 69, 129, 253, 349, 473, 529, 759, 989, 1047, 1419, 1587, 2967, 3839, 5819, 8027, 10879, 11517, 15007, 17457, 22747, 24081, 32637, 45021, 68241, 88297, 165077, 184621, 250217, 264891, 345161, 495231, 553863, 750651, 1035483, 2030831, 3796771, 6092493, 7938703, 11390313, 23816109, 87325733, 261977199]

約数ペア:

[(1, 261977199), (3, 87325733), (11, 23816109), (23, 11390313), (33, 7938703), (43, 6092493), (69, 3796771), (129, 2030831), (253, 1035483), (349, 750651), (473, 553863), (529, 495231), (759, 345161), (989, 264891), (1047, 250217), (1419, 184621), (1587, 165077), (2967, 88297), (3839, 68241), (5819, 45021), (8027, 32637), (10879, 24081), (11517, 22747), (15007, 17457)]