21000837800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{6176717}}^1$

素因数の和:6176750

約数の個数: 48

約数和(自身を含む): 51699129660

約数和(自身を除く): 30698291860

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, 6176717, 12353434, 24706868, 30883585, 49413736, 61767170, 105004189, 123534340, 154417925, 210008378, 247068680, 308835850, 420016756, 525020945, 617671700, 840033512, 1050041890, 1235343400, 2100083780, 2625104725, 4200167560, 5250209450, 10500418900, 21000837800]

約数ペア:

[(1, 21000837800), (2, 10500418900), (4, 5250209450), (5, 4200167560), (8, 2625104725), (10, 2100083780), (17, 1235343400), (20, 1050041890), (25, 840033512), (34, 617671700), (40, 525020945), (50, 420016756), (68, 308835850), (85, 247068680), (100, 210008378), (136, 154417925), (170, 123534340), (200, 105004189), (340, 61767170), (425, 49413736), (680, 30883585), (850, 24706868), (1700, 12353434), (3400, 6176717)]