19953178511

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1\times {\mathrm{9413}}^1$

素因数の和:9863

約数の個数: 32

約数和(自身を含む): 24726435840

約数和(自身を除く): 4773257329

約数列:

[1, 7, 17, 47, 119, 329, 379, 799, 2653, 5593, 6443, 9413, 17813, 45101, 65891, 124691, 160021, 302821, 442411, 1120147, 2119747, 3096877, 3567527, 7520987, 24972689, 52646909, 60647959, 167673769, 424535713, 1173716383, 2850454073, 19953178511]

約数ペア:

[(1, 19953178511), (7, 2850454073), (17, 1173716383), (47, 424535713), (119, 167673769), (329, 60647959), (379, 52646909), (799, 24972689), (2653, 7520987), (5593, 3567527), (6443, 3096877), (9413, 2119747), (17813, 1120147), (45101, 442411), (65891, 302821), (124691, 160021)]