1990490887

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{99809}}^1$

素因数の和:99871

約数の個数: 24

約数和(自身を含む): 2594261520

約数和(自身を除く): 603770633

約数列:

[1, 7, 11, 37, 49, 77, 259, 407, 539, 1813, 2849, 19943, 99809, 698663, 1097899, 3692933, 4890641, 7685293, 25850531, 40622263, 53797051, 180953717, 284355841, 1990490887]

約数ペア:

[(1, 1990490887), (7, 284355841), (11, 180953717), (37, 53797051), (49, 40622263), (77, 25850531), (259, 7685293), (407, 4890641), (539, 3692933), (1813, 1097899), (2849, 698663), (19943, 99809)]