21836871

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2027}}^1$

素因数の和:2065

約数の個数: 40

約数和(自身を含む): 39262080

約数和(自身を除く): 17425209

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 2027, 3591, 6081, 10773, 14189, 18243, 38513, 42567, 54729, 115539, 127701, 164187, 269591, 346617, 383103, 808773, 1039851, 1149309, 2426319, 3119553, 7278957, 21836871]

約数ペア:

[(1, 21836871), (3, 7278957), (7, 3119553), (9, 2426319), (19, 1149309), (21, 1039851), (27, 808773), (57, 383103), (63, 346617), (81, 269591), (133, 164187), (171, 127701), (189, 115539), (399, 54729), (513, 42567), (567, 38513), (1197, 18243), (1539, 14189), (2027, 10773), (3591, 6081)]