21349300

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{4357}}^1$

素因数の和:4385

約数の個数: 54

約数和(自身を含む): 53904102

約数和(自身を除く): 32554802

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4357, 4900, 8714, 17428, 21785, 30499, 43570, 60998, 87140, 108925, 121996, 152495, 213493, 217850, 304990, 426986, 435700, 609980, 762475, 853972, 1067465, 1524950, 2134930, 3049900, 4269860, 5337325, 10674650, 21349300]

約数ペア:

[(1, 21349300), (2, 10674650), (4, 5337325), (5, 4269860), (7, 3049900), (10, 2134930), (14, 1524950), (20, 1067465), (25, 853972), (28, 762475), (35, 609980), (49, 435700), (50, 426986), (70, 304990), (98, 217850), (100, 213493), (140, 152495), (175, 121996), (196, 108925), (245, 87140), (350, 60998), (490, 43570), (700, 30499), (980, 21785), (1225, 17428), (2450, 8714), (4357, 4900)]