19943478

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{347}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 45167616

約数和(自身を除く): 25224138

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 103, 186, 206, 279, 309, 347, 558, 618, 694, 927, 1041, 1854, 2082, 3123, 3193, 6246, 6386, 9579, 10757, 19158, 21514, 28737, 32271, 35741, 57474, 64542, 71482, 96813, 107223, 193626, 214446, 321669, 643338, 1107971, 2215942, 3323913, 6647826, 9971739, 19943478]

約数ペア:

[(1, 19943478), (2, 9971739), (3, 6647826), (6, 3323913), (9, 2215942), (18, 1107971), (31, 643338), (62, 321669), (93, 214446), (103, 193626), (186, 107223), (206, 96813), (279, 71482), (309, 64542), (347, 57474), (558, 35741), (618, 32271), (694, 28737), (927, 21514), (1041, 19158), (1854, 10757), (2082, 9579), (3123, 6386), (3193, 6246)]