20616687

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2797}}^1$

素因数の和:2829

約数の個数: 40

約数和(自身を含む): 37918496

約数和(自身を除く): 17301809

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 2797, 7371, 8391, 19579, 25173, 36361, 58737, 75519, 109083, 176211, 226557, 254527, 327249, 528633, 763581, 981747, 1585899, 2290743, 2945241, 6872229, 20616687]

約数ペア:

[(1, 20616687), (3, 6872229), (7, 2945241), (9, 2290743), (13, 1585899), (21, 981747), (27, 763581), (39, 528633), (63, 327249), (81, 254527), (91, 226557), (117, 176211), (189, 109083), (273, 75519), (351, 58737), (567, 36361), (819, 25173), (1053, 19579), (2457, 8391), (2797, 7371)]