20984613

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1085

約数の個数: 32

約数和(自身を含む): 32965632

約数和(自身を除く): 11981019

約数列:

[1, 3, 13, 17, 31, 39, 51, 93, 221, 403, 527, 663, 1021, 1209, 1581, 3063, 6851, 13273, 17357, 20553, 31651, 39819, 52071, 94953, 225641, 411463, 538067, 676923, 1234389, 1614201, 6994871, 20984613]

約数ペア:

[(1, 20984613), (3, 6994871), (13, 1614201), (17, 1234389), (31, 676923), (39, 538067), (51, 411463), (93, 225641), (221, 94953), (403, 52071), (527, 39819), (663, 31651), (1021, 20553), (1209, 17357), (1581, 13273), (3063, 6851)]