19813714

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{709}}^1$

素因数の和:957

約数の個数: 16

約数和(自身を含む): 30288600

約数和(自身を除く): 10474886

約数列:

[1, 2, 89, 157, 178, 314, 709, 1418, 13973, 27946, 63101, 111313, 126202, 222626, 9906857, 19813714]

約数ペア:

[(1, 19813714), (2, 9906857), (89, 222626), (157, 126202), (178, 111313), (314, 63101), (709, 27946), (1418, 13973)]