21077847

素因数分解:

$3^3\times 7^1\times {\mathrm{229}}^1\times {\mathrm{487}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 35916800

約数和(自身を除く): 14838953

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 229, 487, 687, 1461, 1603, 2061, 3409, 4383, 4809, 6183, 10227, 13149, 14427, 30681, 43281, 92043, 111523, 334569, 780661, 1003707, 2341983, 3011121, 7025949, 21077847]

約数ペア:

[(1, 21077847), (3, 7025949), (7, 3011121), (9, 2341983), (21, 1003707), (27, 780661), (63, 334569), (189, 111523), (229, 92043), (487, 43281), (687, 30681), (1461, 14427), (1603, 13149), (2061, 10227), (3409, 6183), (4383, 4809)]