19778913

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28541}}^1$

素因数の和:28565

約数の個数: 24

約数和(自身を含む): 35620416

約数和(自身を除く): 15841503

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 28541, 85623, 199787, 256869, 313951, 599361, 941853, 1798083, 2197657, 2825559, 6592971, 19778913]

約数ペア:

[(1, 19778913), (3, 6592971), (7, 2825559), (9, 2197657), (11, 1798083), (21, 941853), (33, 599361), (63, 313951), (77, 256869), (99, 199787), (231, 85623), (693, 28541)]