20512781541

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{50023}}^1$

素因数の和:50342

約数の個数: 48

約数和(自身を含む): 35460212736

約数和(自身を除く): 14947431195

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 283, 483, 849, 1449, 1981, 2547, 5943, 6509, 17829, 19527, 45563, 50023, 58581, 136689, 150069, 350161, 410067, 450207, 1050483, 1150529, 3151449, 3451587, 8053703, 10354761, 14156509, 24161109, 42469527, 72483327, 99095563, 127408581, 297286689, 325599707, 891860067, 976799121, 2279197949, 2930397363, 6837593847, 20512781541]

約数ペア:

[(1, 20512781541), (3, 6837593847), (7, 2930397363), (9, 2279197949), (21, 976799121), (23, 891860067), (63, 325599707), (69, 297286689), (161, 127408581), (207, 99095563), (283, 72483327), (483, 42469527), (849, 24161109), (1449, 14156509), (1981, 10354761), (2547, 8053703), (5943, 3451587), (6509, 3151449), (17829, 1150529), (19527, 1050483), (45563, 450207), (50023, 410067), (58581, 350161), (136689, 150069)]