19938710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4421}}^1$

素因数の和:4480

約数の個数: 32

約数和(自身を含む): 40116384

約数和(自身を除く): 20177674

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4421, 4510, 8842, 22105, 44210, 48631, 97262, 181261, 243155, 362522, 486310, 906305, 1812610, 1993871, 3987742, 9969355, 19938710]

約数ペア:

[(1, 19938710), (2, 9969355), (5, 3987742), (10, 1993871), (11, 1812610), (22, 906305), (41, 486310), (55, 362522), (82, 243155), (110, 181261), (205, 97262), (410, 48631), (451, 44210), (902, 22105), (2255, 8842), (4421, 4510)]