21805256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1663}}^1$

素因数の和:1829

約数の個数: 32

約数和(自身を含む): 44928000

約数和(自身を除く): 23122744

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 149, 298, 596, 1192, 1639, 1663, 3278, 3326, 6556, 6652, 13112, 13304, 18293, 36586, 73172, 146344, 247787, 495574, 991148, 1982296, 2725657, 5451314, 10902628, 21805256]

約数ペア:

[(1, 21805256), (2, 10902628), (4, 5451314), (8, 2725657), (11, 1982296), (22, 991148), (44, 495574), (88, 247787), (149, 146344), (298, 73172), (596, 36586), (1192, 18293), (1639, 13304), (1663, 13112), (3278, 6652), (3326, 6556)]