19972584

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^1\times {\mathrm{3907}}^1$

素因数の和:3990

約数の個数: 48

約数和(自身を含む): 54868320

約数和(自身を除く): 34895736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 71, 72, 142, 213, 284, 426, 568, 639, 852, 1278, 1704, 2556, 3907, 5112, 7814, 11721, 15628, 23442, 31256, 35163, 46884, 70326, 93768, 140652, 277397, 281304, 554794, 832191, 1109588, 1664382, 2219176, 2496573, 3328764, 4993146, 6657528, 9986292, 19972584]

約数ペア:

[(1, 19972584), (2, 9986292), (3, 6657528), (4, 4993146), (6, 3328764), (8, 2496573), (9, 2219176), (12, 1664382), (18, 1109588), (24, 832191), (36, 554794), (71, 281304), (72, 277397), (142, 140652), (213, 93768), (284, 70326), (426, 46884), (568, 35163), (639, 31256), (852, 23442), (1278, 15628), (1704, 11721), (2556, 7814), (3907, 5112)]