19495854

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{431}}^1$

素因数の和:805

約数の個数: 48

約数和(自身を含む): 48522240

約数和(自身を除く): 29026386

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 359, 431, 718, 862, 1077, 1293, 2154, 2513, 2586, 3017, 3231, 3879, 5026, 6034, 6462, 7539, 7758, 9051, 15078, 18102, 22617, 27153, 45234, 54306, 154729, 309458, 464187, 928374, 1083103, 1392561, 2166206, 2785122, 3249309, 6498618, 9747927, 19495854]

約数ペア:

[(1, 19495854), (2, 9747927), (3, 6498618), (6, 3249309), (7, 2785122), (9, 2166206), (14, 1392561), (18, 1083103), (21, 928374), (42, 464187), (63, 309458), (126, 154729), (359, 54306), (431, 45234), (718, 27153), (862, 22617), (1077, 18102), (1293, 15078), (2154, 9051), (2513, 7758), (2586, 7539), (3017, 6462), (3231, 6034), (3879, 5026)]