18673655

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1$

素因数の和:97

約数の個数: 72

約数和(自身を含む): 31543344

約数和(自身を除く): 12869689

約数列:

[1, 5, 7, 11, 13, 35, 41, 49, 55, 65, 77, 91, 143, 169, 205, 245, 287, 385, 451, 455, 533, 539, 637, 715, 845, 1001, 1183, 1435, 1859, 2009, 2255, 2665, 2695, 3157, 3185, 3731, 5005, 5863, 5915, 6929, 7007, 8281, 9295, 10045, 13013, 15785, 18655, 22099, 26117, 29315, 34645, 35035, 41041, 41405, 48503, 65065, 76219, 91091, 110495, 130585, 205205, 242515, 287287, 339521, 381095, 455455, 533533, 1436435, 1697605, 2667665, 3734731, 18673655]

約数ペア:

[(1, 18673655), (5, 3734731), (7, 2667665), (11, 1697605), (13, 1436435), (35, 533533), (41, 455455), (49, 381095), (55, 339521), (65, 287287), (77, 242515), (91, 205205), (143, 130585), (169, 110495), (205, 91091), (245, 76219), (287, 65065), (385, 48503), (451, 41405), (455, 41041), (533, 35035), (539, 34645), (637, 29315), (715, 26117), (845, 22099), (1001, 18655), (1183, 15785), (1435, 13013), (1859, 10045), (2009, 9295), (2255, 8281), (2665, 7007), (2695, 6929), (3157, 5915), (3185, 5863), (3731, 5005)]