55408731

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{138869}}^1$

素因数の和:138898

約数の個数: 16

約数和(自身を含む): 88876800

約数和(自身を除く): 33468069

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 138869, 416607, 972083, 2638511, 2916249, 7915533, 18469577, 55408731]

約数ペア:

[(1, 55408731), (3, 18469577), (7, 7915533), (19, 2916249), (21, 2638511), (57, 972083), (133, 416607), (399, 138869)]