18827319

素因数分解:

$3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{607}}^1$

素因数の和:835

約数の個数: 24

約数和(自身を含む): 29388288

約数和(自身を除く): 10560969

約数列:

[1, 3, 7, 21, 49, 147, 211, 607, 633, 1477, 1821, 4249, 4431, 10339, 12747, 29743, 31017, 89229, 128077, 384231, 896539, 2689617, 6275773, 18827319]

約数ペア:

[(1, 18827319), (3, 6275773), (7, 2689617), (21, 896539), (49, 384231), (147, 128077), (211, 89229), (607, 31017), (633, 29743), (1477, 12747), (1821, 10339), (4249, 4431)]