19542985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2207}}^1$

素因数の和:2253

約数の個数: 32

約数和(自身を含む): 30523392

約数和(自身を除く): 10980407

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 161, 253, 385, 805, 1265, 1771, 2207, 8855, 11035, 15449, 24277, 50761, 77245, 121385, 169939, 253805, 355327, 558371, 849695, 1776635, 2791855, 3908597, 19542985]

約数ペア:

[(1, 19542985), (5, 3908597), (7, 2791855), (11, 1776635), (23, 849695), (35, 558371), (55, 355327), (77, 253805), (115, 169939), (161, 121385), (253, 77245), (385, 50761), (805, 24277), (1265, 15449), (1771, 11035), (2207, 8855)]