209815404

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{21401}}^1$

素因数の和:21470

約数の個数: 48

約数和(自身を含む): 527345280

約数和(自身を除く): 317529876

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 43, 57, 76, 86, 114, 129, 172, 228, 258, 516, 817, 1634, 2451, 3268, 4902, 9804, 21401, 42802, 64203, 85604, 128406, 256812, 406619, 813238, 920243, 1219857, 1626476, 1840486, 2439714, 2760729, 3680972, 4879428, 5521458, 11042916, 17484617, 34969234, 52453851, 69938468, 104907702, 209815404]

約数ペア:

[(1, 209815404), (2, 104907702), (3, 69938468), (4, 52453851), (6, 34969234), (12, 17484617), (19, 11042916), (38, 5521458), (43, 4879428), (57, 3680972), (76, 2760729), (86, 2439714), (114, 1840486), (129, 1626476), (172, 1219857), (228, 920243), (258, 813238), (516, 406619), (817, 256812), (1634, 128406), (2451, 85604), (3268, 64203), (4902, 42802), (9804, 21401)]