21946988

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5639}}^1$

素因数の和:5789

約数の個数: 24

約数和(自身を含む): 44217600

約数和(自身を除く): 22270612

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5639, 11278, 22556, 39473, 78946, 157892, 783821, 1567642, 3135284, 5486747, 10973494, 21946988]

約数ペア:

[(1, 21946988), (2, 10973494), (4, 5486747), (7, 3135284), (14, 1567642), (28, 783821), (139, 157892), (278, 78946), (556, 39473), (973, 22556), (1946, 11278), (3892, 5639)]