19782476

素因数分解:

$2^2\times 7^2\times {\mathrm{100931}}^1$

素因数の和:100949

約数の個数: 18

約数和(自身を含む): 40271868

約数和(自身を除く): 20489392

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 100931, 201862, 403724, 706517, 1413034, 2826068, 4945619, 9891238, 19782476]

約数ペア:

[(1, 19782476), (2, 9891238), (4, 4945619), (7, 2826068), (14, 1413034), (28, 706517), (49, 403724), (98, 201862), (196, 100931)]