21411700989

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2693}}^1\times {\mathrm{19927}}^1$

素因数の和:22649

約数の個数: 32

約数和(自身を含む): 34359060480

約数和(自身を除く): 12947359491

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 2693, 8079, 18851, 19927, 51167, 56553, 59781, 139489, 153501, 358169, 378613, 418467, 1074507, 1135839, 2650291, 7950873, 53663411, 160990233, 375643877, 1019604809, 1126931631, 3058814427, 7137233663, 21411700989]

約数ペア:

[(1, 21411700989), (3, 7137233663), (7, 3058814427), (19, 1126931631), (21, 1019604809), (57, 375643877), (133, 160990233), (399, 53663411), (2693, 7950873), (8079, 2650291), (18851, 1135839), (19927, 1074507), (51167, 418467), (56553, 378613), (59781, 358169), (139489, 153501)]