19665864

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^1\times {\mathrm{3847}}^1$

素因数の和:3930

約数の個数: 48

約数和(自身を含む): 54025920

約数和(自身を除く): 34360056

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, 3847, 5112, 7694, 11541, 15388, 23082, 30776, 34623, 46164, 69246, 92328, 138492, 273137, 276984, 546274, 819411, 1092548, 1638822, 2185096, 2458233, 3277644, 4916466, 6555288, 9832932, 19665864]

約数ペア:

[(1, 19665864), (2, 9832932), (3, 6555288), (4, 4916466), (6, 3277644), (8, 2458233), (9, 2185096), (12, 1638822), (18, 1092548), (24, 819411), (36, 546274), (71, 276984), (72, 273137), (142, 138492), (213, 92328), (284, 69246), (426, 46164), (568, 34623), (639, 30776), (852, 23082), (1278, 15388), (1704, 11541), (2556, 7694), (3847, 5112)]