21117417

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 33357312

約数和(自身を除く): 12239895

約数列:

[1, 3, 17, 19, 31, 37, 51, 57, 93, 111, 323, 361, 527, 589, 629, 703, 969, 1083, 1147, 1581, 1767, 1887, 2109, 3441, 6137, 10013, 11191, 11951, 13357, 18411, 19499, 21793, 30039, 33573, 35853, 40071, 58497, 65379, 190247, 227069, 370481, 414067, 570741, 681207, 1111443, 1242201, 7039139, 21117417]

約数ペア:

[(1, 21117417), (3, 7039139), (17, 1242201), (19, 1111443), (31, 681207), (37, 570741), (51, 414067), (57, 370481), (93, 227069), (111, 190247), (323, 65379), (361, 58497), (527, 40071), (589, 35853), (629, 33573), (703, 30039), (969, 21793), (1083, 19499), (1147, 18411), (1581, 13357), (1767, 11951), (1887, 11191), (2109, 10013), (3441, 6137)]