19418984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3061}}^1$

素因数の和:3141

約数の個数: 32

約数和(自身を含む): 39867240

約数和(自身を除く): 20448256

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3061, 3172, 6122, 6344, 12244, 24488, 39793, 79586, 159172, 186721, 318344, 373442, 746884, 1493768, 2427373, 4854746, 9709492, 19418984]

約数ペア:

[(1, 19418984), (2, 9709492), (4, 4854746), (8, 2427373), (13, 1493768), (26, 746884), (52, 373442), (61, 318344), (104, 186721), (122, 159172), (244, 79586), (488, 39793), (793, 24488), (1586, 12244), (3061, 6344), (3172, 6122)]