81642561

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{877}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 151044096

約数和(自身を除く): 69401535

約数列:

[1, 3, 7, 11, 13, 21, 31, 33, 39, 77, 91, 93, 143, 217, 231, 273, 341, 403, 429, 651, 877, 1001, 1023, 1209, 2387, 2631, 2821, 3003, 4433, 6139, 7161, 8463, 9647, 11401, 13299, 18417, 27187, 28941, 31031, 34203, 67529, 79807, 81561, 93093, 125411, 190309, 202587, 239421, 299057, 353431, 376233, 570927, 877877, 897171, 1060293, 2093399, 2474017, 2633631, 3887741, 6280197, 7422051, 11663223, 27214187, 81642561]

約数ペア:

[(1, 81642561), (3, 27214187), (7, 11663223), (11, 7422051), (13, 6280197), (21, 3887741), (31, 2633631), (33, 2474017), (39, 2093399), (77, 1060293), (91, 897171), (93, 877877), (143, 570927), (217, 376233), (231, 353431), (273, 299057), (341, 239421), (403, 202587), (429, 190309), (651, 125411), (877, 93093), (1001, 81561), (1023, 79807), (1209, 67529), (2387, 34203), (2631, 31031), (2821, 28941), (3003, 27187), (4433, 18417), (6139, 13299), (7161, 11401), (8463, 9647)]