19788944

素因数分解:

$2^4\times 7^2\times {\mathrm{43}}^1\times {\mathrm{587}}^1$

素因数の和:652

約数の個数: 60

約数和(自身を含む): 45715824

約数和(自身を除く): 25926880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 49, 56, 86, 98, 112, 172, 196, 301, 344, 392, 587, 602, 688, 784, 1174, 1204, 2107, 2348, 2408, 4109, 4214, 4696, 4816, 8218, 8428, 9392, 16436, 16856, 25241, 28763, 32872, 33712, 50482, 57526, 65744, 100964, 115052, 176687, 201928, 230104, 353374, 403856, 460208, 706748, 1236809, 1413496, 2473618, 2826992, 4947236, 9894472, 19788944]

約数ペア:

[(1, 19788944), (2, 9894472), (4, 4947236), (7, 2826992), (8, 2473618), (14, 1413496), (16, 1236809), (28, 706748), (43, 460208), (49, 403856), (56, 353374), (86, 230104), (98, 201928), (112, 176687), (172, 115052), (196, 100964), (301, 65744), (344, 57526), (392, 50482), (587, 33712), (602, 32872), (688, 28763), (784, 25241), (1174, 16856), (1204, 16436), (2107, 9392), (2348, 8428), (2408, 8218), (4109, 4816), (4214, 4696)]