19117791

素因数分解:

$3^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{563}}^1$

素因数の和:601

約数の個数: 48

約数和(自身を含む): 35193600

約数和(自身を除く): 16075809

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 343, 441, 539, 563, 693, 1029, 1617, 1689, 3087, 3773, 3941, 4851, 5067, 6193, 11319, 11823, 18579, 27587, 33957, 35469, 43351, 55737, 82761, 130053, 193109, 248283, 303457, 390159, 579327, 910371, 1737981, 2124199, 2731113, 6372597, 19117791]

約数ペア:

[(1, 19117791), (3, 6372597), (7, 2731113), (9, 2124199), (11, 1737981), (21, 910371), (33, 579327), (49, 390159), (63, 303457), (77, 248283), (99, 193109), (147, 130053), (231, 82761), (343, 55737), (441, 43351), (539, 35469), (563, 33957), (693, 27587), (1029, 18579), (1617, 11823), (1689, 11319), (3087, 6193), (3773, 5067), (3941, 4851)]