21647800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{6367}}^1$

素因数の和:6400

約数の個数: 48

約数和(自身を含む): 53300160

約数和(自身を除く): 31652360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 340, 425, 680, 850, 1700, 3400, 6367, 12734, 25468, 31835, 50936, 63670, 108239, 127340, 159175, 216478, 254680, 318350, 432956, 541195, 636700, 865912, 1082390, 1273400, 2164780, 2705975, 4329560, 5411950, 10823900, 21647800]

約数ペア:

[(1, 21647800), (2, 10823900), (4, 5411950), (5, 4329560), (8, 2705975), (10, 2164780), (17, 1273400), (20, 1082390), (25, 865912), (34, 636700), (40, 541195), (50, 432956), (68, 318350), (85, 254680), (100, 216478), (136, 159175), (170, 127340), (200, 108239), (340, 63670), (425, 50936), (680, 31835), (850, 25468), (1700, 12734), (3400, 6367)]