20984564

素因数分解:

$2^2\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 37384200

約数和(自身を除く): 16399636

約数列:

[1, 2, 4, 137, 149, 257, 274, 298, 514, 548, 596, 1028, 20413, 35209, 38293, 40826, 70418, 76586, 81652, 140836, 153172, 5246141, 10492282, 20984564]

約数ペア:

[(1, 20984564), (2, 10492282), (4, 5246141), (137, 153172), (149, 140836), (257, 81652), (274, 76586), (298, 70418), (514, 40826), (548, 38293), (596, 35209), (1028, 20413)]