20171019

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2741}}^1$

素因数の和:2978

約数の個数: 16

約数和(自身を含む): 29481984

約数和(自身を除く): 9310965

約数列:

[1, 3, 11, 33, 223, 669, 2453, 2741, 7359, 8223, 30151, 90453, 611243, 1833729, 6723673, 20171019]

約数ペア:

[(1, 20171019), (3, 6723673), (11, 1833729), (33, 611243), (223, 90453), (669, 30151), (2453, 8223), (2741, 7359)]