20869984

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{15907}}^1$

素因数の和:15958

約数の個数: 24

約数和(自身を含む): 42092568

約数和(自身を除く): 21222584

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 15907, 31814, 63628, 127256, 254512, 509024, 652187, 1304374, 2608748, 5217496, 10434992, 20869984]

約数ペア:

[(1, 20869984), (2, 10434992), (4, 5217496), (8, 2608748), (16, 1304374), (32, 652187), (41, 509024), (82, 254512), (164, 127256), (328, 63628), (656, 31814), (1312, 15907)]