21839990

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{881}}^1$

素因数の和:992

約数の個数: 32

約数和(自身を含む): 41023584

約数和(自身を除く): 19183594

約数列:

[1, 2, 5, 10, 37, 67, 74, 134, 185, 335, 370, 670, 881, 1762, 2479, 4405, 4958, 8810, 12395, 24790, 32597, 59027, 65194, 118054, 162985, 295135, 325970, 590270, 2183999, 4367998, 10919995, 21839990]

約数ペア:

[(1, 21839990), (2, 10919995), (5, 4367998), (10, 2183999), (37, 590270), (67, 325970), (74, 295135), (134, 162985), (185, 118054), (335, 65194), (370, 59027), (670, 32597), (881, 24790), (1762, 12395), (2479, 8810), (4405, 4958)]