21309070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{112153}}^1$

素因数の和:112179

約数の個数: 16

約数和(自身を含む): 40375440

約数和(自身を除く): 19066370

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 112153, 224306, 560765, 1121530, 2130907, 4261814, 10654535, 21309070]

約数ペア:

[(1, 21309070), (2, 10654535), (5, 4261814), (10, 2130907), (19, 1121530), (38, 560765), (95, 224306), (190, 112153)]