19959428

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{7933}}^1$

素因数の和:7991

約数の個数: 24

約数和(自身を含む): 37987992

約数和(自身を除く): 18028564

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 629, 1258, 2516, 7933, 15866, 31732, 134861, 269722, 293521, 539444, 587042, 1174084, 4989857, 9979714, 19959428]

約数ペア:

[(1, 19959428), (2, 9979714), (4, 4989857), (17, 1174084), (34, 587042), (37, 539444), (68, 293521), (74, 269722), (148, 134861), (629, 31732), (1258, 15866), (2516, 7933)]