18939970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38653}}^1$

素因数の和:38674

約数の個数: 24

約数和(自身を含む): 39659004

約数和(自身を除く): 20719034

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38653, 77306, 193265, 270571, 386530, 541142, 1352855, 1893997, 2705710, 3787994, 9469985, 18939970]

約数ペア:

[(1, 18939970), (2, 9469985), (5, 3787994), (7, 2705710), (10, 1893997), (14, 1352855), (35, 541142), (49, 386530), (70, 270571), (98, 193265), (245, 77306), (490, 38653)]