18894178

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{953}}^1$

素因数の和:1409

約数の個数: 16

約数和(自身を含む): 29673216

約数和(自身を除く): 10779038

約数列:

[1, 2, 23, 46, 431, 862, 953, 1906, 9913, 19826, 21919, 43838, 410743, 821486, 9447089, 18894178]

約数ペア:

[(1, 18894178), (2, 9447089), (23, 821486), (46, 410743), (431, 43838), (862, 21919), (953, 19826), (1906, 9913)]