211237565

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1674

約数の個数: 48

約数和(自身を含む): 328903680

約数和(自身を除く): 117666115

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 121, 155, 217, 341, 385, 605, 847, 1085, 1609, 1705, 2387, 3751, 4235, 8045, 11263, 11935, 17699, 18755, 26257, 49879, 56315, 88495, 123893, 131285, 194689, 249395, 349153, 548669, 619465, 973445, 1362823, 1745765, 2743345, 3840683, 6035359, 6814115, 19203415, 30176795, 42247513, 211237565]

約数ペア:

[(1, 211237565), (5, 42247513), (7, 30176795), (11, 19203415), (31, 6814115), (35, 6035359), (55, 3840683), (77, 2743345), (121, 1745765), (155, 1362823), (217, 973445), (341, 619465), (385, 548669), (605, 349153), (847, 249395), (1085, 194689), (1609, 131285), (1705, 123893), (2387, 88495), (3751, 56315), (4235, 49879), (8045, 26257), (11263, 18755), (11935, 17699)]