19904402

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{10853}}^1$

素因数の和:10993

約数の個数: 16

約数和(自身を含む): 34385472

約数和(自身を除く): 14481070

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 10853, 21706, 75971, 151942, 1421743, 2843486, 9952201, 19904402]

約数ペア:

[(1, 19904402), (2, 9952201), (7, 2843486), (14, 1421743), (131, 151942), (262, 75971), (917, 21706), (1834, 10853)]