21186711

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8623}}^1$

素因数の和:8652

約数の個数: 32

約数和(自身を含む): 38635520

約数和(自身を除く): 17448809

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8623, 25869, 60361, 77607, 112099, 181083, 232821, 336297, 543249, 784693, 1008891, 1629747, 2354079, 3026673, 7062237, 21186711]

約数ペア:

[(1, 21186711), (3, 7062237), (7, 3026673), (9, 2354079), (13, 1629747), (21, 1008891), (27, 784693), (39, 543249), (63, 336297), (91, 232821), (117, 181083), (189, 112099), (273, 77607), (351, 60361), (819, 25869), (2457, 8623)]