21485256

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68863}}^1$

素因数の和:68885

約数の個数: 32

約数和(自身を含む): 57845760

約数和(自身を除く): 36360504

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68863, 137726, 206589, 275452, 413178, 550904, 826356, 895219, 1652712, 1790438, 2685657, 3580876, 5371314, 7161752, 10742628, 21485256]

約数ペア:

[(1, 21485256), (2, 10742628), (3, 7161752), (4, 5371314), (6, 3580876), (8, 2685657), (12, 1790438), (13, 1652712), (24, 895219), (26, 826356), (39, 550904), (52, 413178), (78, 275452), (104, 206589), (156, 137726), (312, 68863)]