21700278

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10861}}^1$

素因数の和:10909

約数の個数: 32

約数和(自身を含む): 49530720

約数和(自身を除く): 27830442

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10861, 21722, 32583, 65166, 97749, 195498, 293247, 401857, 586494, 803714, 1205571, 2411142, 3616713, 7233426, 10850139, 21700278]

約数ペア:

[(1, 21700278), (2, 10850139), (3, 7233426), (6, 3616713), (9, 2411142), (18, 1205571), (27, 803714), (37, 586494), (54, 401857), (74, 293247), (111, 195498), (222, 97749), (333, 65166), (666, 32583), (999, 21722), (1998, 10861)]