21316623

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 10294257

約数列:

[1, 3, 17, 31, 51, 93, 97, 139, 291, 417, 527, 1581, 1649, 2363, 3007, 4309, 4947, 7089, 9021, 12927, 13483, 40449, 51119, 73253, 153357, 219759, 229211, 417973, 687633, 1253919, 7105541, 21316623]

約数ペア:

[(1, 21316623), (3, 7105541), (17, 1253919), (31, 687633), (51, 417973), (93, 229211), (97, 219759), (139, 153357), (291, 73253), (417, 51119), (527, 40449), (1581, 13483), (1649, 12927), (2363, 9021), (3007, 7089), (4309, 4947)]