21778938

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{691}}^1$

素因数の和:819

約数の個数: 48

約数和(自身を含む): 50521536

約数和(自身を除く): 28742598

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 103, 153, 206, 306, 309, 618, 691, 927, 1382, 1751, 1854, 2073, 3502, 4146, 5253, 6219, 10506, 11747, 12438, 15759, 23494, 31518, 35241, 70482, 71173, 105723, 142346, 211446, 213519, 427038, 640557, 1209941, 1281114, 2419882, 3629823, 7259646, 10889469, 21778938]

約数ペア:

[(1, 21778938), (2, 10889469), (3, 7259646), (6, 3629823), (9, 2419882), (17, 1281114), (18, 1209941), (34, 640557), (51, 427038), (102, 213519), (103, 211446), (153, 142346), (206, 105723), (306, 71173), (309, 70482), (618, 35241), (691, 31518), (927, 23494), (1382, 15759), (1751, 12438), (1854, 11747), (2073, 10506), (3502, 6219), (4146, 5253)]