18661990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{98221}}^1$

素因数の和:98247

約数の個数: 16

約数和(自身を含む): 35359920

約数和(自身を除く): 16697930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 98221, 196442, 491105, 982210, 1866199, 3732398, 9330995, 18661990]

約数ペア:

[(1, 18661990), (2, 9330995), (5, 3732398), (10, 1866199), (19, 982210), (38, 491105), (95, 196442), (190, 98221)]