19380735

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:477

約数の個数: 64

約数和(自身を含む): 38891520

約数和(自身を除く): 19510785

約数列:

[1, 3, 5, 9, 11, 15, 27, 31, 33, 45, 55, 93, 99, 135, 155, 165, 279, 297, 341, 421, 465, 495, 837, 1023, 1263, 1395, 1485, 1705, 2105, 3069, 3789, 4185, 4631, 5115, 6315, 9207, 11367, 13051, 13893, 15345, 18945, 23155, 39153, 41679, 46035, 56835, 65255, 69465, 117459, 125037, 143561, 195765, 208395, 352377, 430683, 587295, 625185, 717805, 1292049, 1761885, 2153415, 3876147, 6460245, 19380735]

約数ペア:

[(1, 19380735), (3, 6460245), (5, 3876147), (9, 2153415), (11, 1761885), (15, 1292049), (27, 717805), (31, 625185), (33, 587295), (45, 430683), (55, 352377), (93, 208395), (99, 195765), (135, 143561), (155, 125037), (165, 117459), (279, 69465), (297, 65255), (341, 56835), (421, 46035), (465, 41679), (495, 39153), (837, 23155), (1023, 18945), (1263, 15345), (1395, 13893), (1485, 13051), (1705, 11367), (2105, 9207), (3069, 6315), (3789, 5115), (4185, 4631)]