20540982

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:453

約数の個数: 64

約数和(自身を含む): 51715584

約数和(自身を除く): 31174602

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 173, 231, 257, 346, 462, 514, 519, 771, 1038, 1211, 1542, 1799, 1903, 2422, 2827, 3598, 3633, 3806, 5397, 5654, 5709, 7266, 8481, 10794, 11418, 13321, 16962, 19789, 26642, 39578, 39963, 44461, 59367, 79926, 88922, 118734, 133383, 266766, 311227, 489071, 622454, 933681, 978142, 1467213, 1867362, 2934426, 3423497, 6846994, 10270491, 20540982]

約数ペア:

[(1, 20540982), (2, 10270491), (3, 6846994), (6, 3423497), (7, 2934426), (11, 1867362), (14, 1467213), (21, 978142), (22, 933681), (33, 622454), (42, 489071), (66, 311227), (77, 266766), (154, 133383), (173, 118734), (231, 88922), (257, 79926), (346, 59367), (462, 44461), (514, 39963), (519, 39578), (771, 26642), (1038, 19789), (1211, 16962), (1542, 13321), (1799, 11418), (1903, 10794), (2422, 8481), (2827, 7266), (3598, 5709), (3633, 5654), (3806, 5397)]