20486583

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{331}}^1$

素因数の和:396

約数の個数: 36

約数和(自身を含む): 33414472

約数和(自身を除く): 12927889

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 331, 529, 897, 993, 1587, 2691, 2979, 4303, 4761, 6877, 7613, 12909, 20631, 22839, 38727, 61893, 68517, 98969, 175099, 296907, 525297, 890721, 1575891, 2276287, 6828861, 20486583]

約数ペア:

[(1, 20486583), (3, 6828861), (9, 2276287), (13, 1575891), (23, 890721), (39, 525297), (69, 296907), (117, 175099), (207, 98969), (299, 68517), (331, 61893), (529, 38727), (897, 22839), (993, 20631), (1587, 12909), (2691, 7613), (2979, 6877), (4303, 4761)]