19993578

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{13171}}^1$

素因数の和:13210

約数の個数: 32

約数和(自身を含む): 45522432

約数和(自身を除く): 25528854

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 759, 1518, 13171, 26342, 39513, 79026, 144881, 289762, 302933, 434643, 605866, 869286, 908799, 1817598, 3332263, 6664526, 9996789, 19993578]

約数ペア:

[(1, 19993578), (2, 9996789), (3, 6664526), (6, 3332263), (11, 1817598), (22, 908799), (23, 869286), (33, 605866), (46, 434643), (66, 302933), (69, 289762), (138, 144881), (253, 79026), (506, 39513), (759, 26342), (1518, 13171)]