19556816

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{11867}}^1$

素因数の和:11978

約数の個数: 20

約数和(自身を含む): 38262432

約数和(自身を除く): 18705616

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 11867, 23734, 47468, 94936, 189872, 1222301, 2444602, 4889204, 9778408, 19556816]

約数ペア:

[(1, 19556816), (2, 9778408), (4, 4889204), (8, 2444602), (16, 1222301), (103, 189872), (206, 94936), (412, 47468), (824, 23734), (1648, 11867)]