19645197

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 32532864

約数和(自身を除く): 12887667

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 121, 143, 181, 253, 299, 363, 429, 543, 759, 897, 1573, 1991, 2353, 2783, 3289, 4163, 4719, 5973, 7059, 8349, 9867, 12489, 21901, 25883, 36179, 45793, 54119, 65703, 77649, 108537, 137379, 162357, 284713, 503723, 595309, 854139, 1511169, 1785927, 6548399, 19645197]

約数ペア:

[(1, 19645197), (3, 6548399), (11, 1785927), (13, 1511169), (23, 854139), (33, 595309), (39, 503723), (69, 284713), (121, 162357), (143, 137379), (181, 108537), (253, 77649), (299, 65703), (363, 54119), (429, 45793), (543, 36179), (759, 25883), (897, 21901), (1573, 12489), (1991, 9867), (2353, 8349), (2783, 7059), (3289, 5973), (4163, 4719)]