20771685

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1447}}^1$

素因数の和:1498

約数の個数: 48

約数和(自身を含む): 40659840

約数和(自身を除く): 19888155

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1447, 1595, 2871, 4341, 4785, 7235, 13023, 14355, 15917, 21705, 41963, 47751, 65115, 79585, 125889, 143253, 209815, 238755, 377667, 461593, 629445, 716265, 1384779, 1888335, 2307965, 4154337, 6923895, 20771685]

約数ペア:

[(1, 20771685), (3, 6923895), (5, 4154337), (9, 2307965), (11, 1888335), (15, 1384779), (29, 716265), (33, 629445), (45, 461593), (55, 377667), (87, 238755), (99, 209815), (145, 143253), (165, 125889), (261, 79585), (319, 65115), (435, 47751), (495, 41963), (957, 21705), (1305, 15917), (1447, 14355), (1595, 13023), (2871, 7235), (4341, 4785)]