18815994

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{14723}}^1$

素因数の和:14802

約数の個数: 24

約数和(自身を含む): 41344992

約数和(自身を除く): 22528998

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 14723, 29446, 44169, 88338, 132507, 265014, 1045333, 2090666, 3135999, 6271998, 9407997, 18815994]

約数ペア:

[(1, 18815994), (2, 9407997), (3, 6271998), (6, 3135999), (9, 2090666), (18, 1045333), (71, 265014), (142, 132507), (213, 88338), (426, 44169), (639, 29446), (1278, 14723)]