21398964

素因数分解:

$2^2\times 3^1\times {\mathrm{401}}^1\times {\mathrm{4447}}^1$

素因数の和:4855

約数の個数: 24

約数和(自身を含む): 50066688

約数和(自身を除く): 28667724

約数列:

[1, 2, 3, 4, 6, 12, 401, 802, 1203, 1604, 2406, 4447, 4812, 8894, 13341, 17788, 26682, 53364, 1783247, 3566494, 5349741, 7132988, 10699482, 21398964]

約数ペア:

[(1, 21398964), (2, 10699482), (3, 7132988), (4, 5349741), (6, 3566494), (12, 1783247), (401, 53364), (802, 26682), (1203, 17788), (1604, 13341), (2406, 8894), (4447, 4812)]