1680003

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 2660112

約数和(自身を除く): 980109

約数列:

[1, 3, 9, 13, 39, 83, 117, 173, 249, 519, 747, 1079, 1557, 2249, 3237, 6747, 9711, 14359, 20241, 43077, 129231, 186667, 560001, 1680003]

約数ペア:

[(1, 1680003), (3, 560001), (9, 186667), (13, 129231), (39, 43077), (83, 20241), (117, 14359), (173, 9711), (249, 6747), (519, 3237), (747, 2249), (1079, 1557)]