19939689

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:192

約数の個数: 80

約数和(自身を含む): 39029760

約数和(自身を除く): 19090071

約数列:

[1, 3, 7, 9, 11, 21, 23, 27, 33, 63, 69, 77, 81, 99, 139, 161, 189, 207, 231, 253, 297, 417, 483, 567, 621, 693, 759, 891, 973, 1251, 1449, 1529, 1771, 1863, 2079, 2277, 2919, 3197, 3753, 4347, 4587, 5313, 6237, 6831, 8757, 9591, 10703, 11259, 13041, 13761, 15939, 20493, 22379, 26271, 28773, 32109, 35167, 41283, 47817, 67137, 78813, 86319, 96327, 105501, 123849, 143451, 201411, 246169, 258957, 288981, 316503, 604233, 738507, 866943, 949509, 1812699, 2215521, 2848527, 6646563, 19939689]

約数ペア:

[(1, 19939689), (3, 6646563), (7, 2848527), (9, 2215521), (11, 1812699), (21, 949509), (23, 866943), (27, 738507), (33, 604233), (63, 316503), (69, 288981), (77, 258957), (81, 246169), (99, 201411), (139, 143451), (161, 123849), (189, 105501), (207, 96327), (231, 86319), (253, 78813), (297, 67137), (417, 47817), (483, 41283), (567, 35167), (621, 32109), (693, 28773), (759, 26271), (891, 22379), (973, 20493), (1251, 15939), (1449, 13761), (1529, 13041), (1771, 11259), (1863, 10703), (2079, 9591), (2277, 8757), (2919, 6831), (3197, 6237), (3753, 5313), (4347, 4587)]