19203415

素因数分解:

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

素因数の和:1663

約数の個数: 32

約数和(自身を含む): 29675520

約数和(自身を除く): 10472105

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 155, 217, 341, 385, 1085, 1609, 1705, 2387, 8045, 11263, 11935, 17699, 49879, 56315, 88495, 123893, 249395, 349153, 548669, 619465, 1745765, 2743345, 3840683, 19203415]

約数ペア:

[(1, 19203415), (5, 3840683), (7, 2743345), (11, 1745765), (31, 619465), (35, 548669), (55, 349153), (77, 249395), (155, 123893), (217, 88495), (341, 56315), (385, 49879), (1085, 17699), (1609, 11935), (1705, 11263), (2387, 8045)]