21508713578877

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10169}}^1\times {\mathrm{5301067}}^1$

素因数の和:5311265

約数の個数: 32

約数和(自身を含む): 34503591398400

約数和(自身を除く): 12994877819523

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 10169, 30507, 71183, 193211, 213549, 579633, 1352477, 4057431, 5301067, 15903201, 37107469, 100720273, 111322407, 302160819, 705041911, 2115125733, 53906550323, 161719650969, 377345852261, 1024224456137, 1132037556783, 3072673368411, 7169571192959, 21508713578877]

約数ペア:

[(1, 21508713578877), (3, 7169571192959), (7, 3072673368411), (19, 1132037556783), (21, 1024224456137), (57, 377345852261), (133, 161719650969), (399, 53906550323), (10169, 2115125733), (30507, 705041911), (71183, 302160819), (193211, 111322407), (213549, 100720273), (579633, 37107469), (1352477, 15903201), (4057431, 5301067)]