21730331

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1901}}^1$

素因数の和:2002

約数の個数: 16

約数和(自身を含む): 26293248

約数和(自身を除く): 4562917

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1901, 11431, 13307, 43723, 134971, 306061, 944797, 3104333, 21730331]

約数ペア:

[(1, 21730331), (7, 3104333), (23, 944797), (71, 306061), (161, 134971), (497, 43723), (1633, 13307), (1901, 11431)]