21842000

素因数分解:

$2^4\times 5^3\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 80

約数和(自身を含む): 53931072

約数和(自身を除く): 32089072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 67, 80, 100, 125, 134, 163, 200, 250, 268, 326, 335, 400, 500, 536, 652, 670, 815, 1000, 1072, 1304, 1340, 1630, 1675, 2000, 2608, 2680, 3260, 3350, 4075, 5360, 6520, 6700, 8150, 8375, 10921, 13040, 13400, 16300, 16750, 20375, 21842, 26800, 32600, 33500, 40750, 43684, 54605, 65200, 67000, 81500, 87368, 109210, 134000, 163000, 174736, 218420, 273025, 326000, 436840, 546050, 873680, 1092100, 1365125, 2184200, 2730250, 4368400, 5460500, 10921000, 21842000]

約数ペア:

[(1, 21842000), (2, 10921000), (4, 5460500), (5, 4368400), (8, 2730250), (10, 2184200), (16, 1365125), (20, 1092100), (25, 873680), (40, 546050), (50, 436840), (67, 326000), (80, 273025), (100, 218420), (125, 174736), (134, 163000), (163, 134000), (200, 109210), (250, 87368), (268, 81500), (326, 67000), (335, 65200), (400, 54605), (500, 43684), (536, 40750), (652, 33500), (670, 32600), (815, 26800), (1000, 21842), (1072, 20375), (1304, 16750), (1340, 16300), (1630, 13400), (1675, 13040), (2000, 10921), (2608, 8375), (2680, 8150), (3260, 6700), (3350, 6520), (4075, 5360)]