21555414

素因数分解:

$2^1\times 3^2\times {\mathrm{59}}^1\times {\mathrm{20297}}^1$

素因数の和:20364

約数の個数: 24

約数和(自身を含む): 47497320

約数和(自身を除く): 25941906

約数列:

[1, 2, 3, 6, 9, 18, 59, 118, 177, 354, 531, 1062, 20297, 40594, 60891, 121782, 182673, 365346, 1197523, 2395046, 3592569, 7185138, 10777707, 21555414]

約数ペア:

[(1, 21555414), (2, 10777707), (3, 7185138), (6, 3592569), (9, 2395046), (18, 1197523), (59, 365346), (118, 182673), (177, 121782), (354, 60891), (531, 40594), (1062, 20297)]