21305930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125329}}^1$

素因数の和:125353

約数の個数: 16

約数和(自身を含む): 40606920

約数和(自身を除く): 19300990

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125329, 250658, 626645, 1253290, 2130593, 4261186, 10652965, 21305930]

約数ペア:

[(1, 21305930), (2, 10652965), (5, 4261186), (10, 2130593), (17, 1253290), (34, 626645), (85, 250658), (170, 125329)]