21691922

素因数分解:

$2^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{6173}}^1$

素因数の和:6433

約数の個数: 16

約数和(自身を含む): 37340352

約数和(自身を除く): 15648430

約数列:

[1, 2, 7, 14, 251, 502, 1757, 3514, 6173, 12346, 43211, 86422, 1549423, 3098846, 10845961, 21691922]

約数ペア:

[(1, 21691922), (2, 10845961), (7, 3098846), (14, 1549423), (251, 86422), (502, 43211), (1757, 12346), (3514, 6173)]