21344428

素因数分解:

$2^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1901}}^1$

素因数の和:2313

約数の個数: 24

約数和(自身を含む): 42817824

約数和(自身を除く): 21473396

約数列:

[1, 2, 4, 7, 14, 28, 401, 802, 1604, 1901, 2807, 3802, 5614, 7604, 11228, 13307, 26614, 53228, 762301, 1524602, 3049204, 5336107, 10672214, 21344428]

約数ペア:

[(1, 21344428), (2, 10672214), (4, 5336107), (7, 3049204), (14, 1524602), (28, 762301), (401, 53228), (802, 26614), (1604, 13307), (1901, 11228), (2807, 7604), (3802, 5614)]