19808495

素因数分解:

$5^1\times 7^2\times {\mathrm{233}}^1\times {\mathrm{347}}^1$

素因数の和:599

約数の個数: 24

約数和(自身を含む): 27849744

約数和(自身を除く): 8041249

約数列:

[1, 5, 7, 35, 49, 233, 245, 347, 1165, 1631, 1735, 2429, 8155, 11417, 12145, 17003, 57085, 80851, 85015, 404255, 565957, 2829785, 3961699, 19808495]

約数ペア:

[(1, 19808495), (5, 3961699), (7, 2829785), (35, 565957), (49, 404255), (233, 85015), (245, 80851), (347, 57085), (1165, 17003), (1631, 12145), (1735, 11417), (2429, 8155)]