19040992

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 38918880

約数和(自身を除く): 19877888

約数列:

[1, 2, 4, 8, 16, 32, 53, 103, 106, 109, 206, 212, 218, 412, 424, 436, 824, 848, 872, 1648, 1696, 1744, 3296, 3488, 5459, 5777, 10918, 11227, 11554, 21836, 22454, 23108, 43672, 44908, 46216, 87344, 89816, 92432, 174688, 179632, 184864, 359264, 595031, 1190062, 2380124, 4760248, 9520496, 19040992]

約数ペア:

[(1, 19040992), (2, 9520496), (4, 4760248), (8, 2380124), (16, 1190062), (32, 595031), (53, 359264), (103, 184864), (106, 179632), (109, 174688), (206, 92432), (212, 89816), (218, 87344), (412, 46216), (424, 44908), (436, 43672), (824, 23108), (848, 22454), (872, 21836), (1648, 11554), (1696, 11227), (1744, 10918), (3296, 5777), (3488, 5459)]