20291715

素因数分解:

$3^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:335

約数の個数: 56

約数和(自身を含む): 38561040

約数和(自身を除く): 18269325

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 243, 285, 293, 405, 513, 729, 855, 879, 1215, 1465, 1539, 2565, 2637, 3645, 4395, 4617, 5567, 7695, 7911, 13185, 13851, 16701, 23085, 23733, 27835, 39555, 50103, 69255, 71199, 83505, 118665, 150309, 213597, 250515, 355995, 450927, 751545, 1067985, 1352781, 2254635, 4058343, 6763905, 20291715]

約数ペア:

[(1, 20291715), (3, 6763905), (5, 4058343), (9, 2254635), (15, 1352781), (19, 1067985), (27, 751545), (45, 450927), (57, 355995), (81, 250515), (95, 213597), (135, 150309), (171, 118665), (243, 83505), (285, 71199), (293, 69255), (405, 50103), (513, 39555), (729, 27835), (855, 23733), (879, 23085), (1215, 16701), (1465, 13851), (1539, 13185), (2565, 7911), (2637, 7695), (3645, 5567), (4395, 4617)]