18907892

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1097}}^1$

素因数の和:1271

約数の個数: 24

約数和(自身を含む): 34433280

約数和(自身を除く): 15525388

約数列:

[1, 2, 4, 31, 62, 124, 139, 278, 556, 1097, 2194, 4309, 4388, 8618, 17236, 34007, 68014, 136028, 152483, 304966, 609932, 4726973, 9453946, 18907892]

約数ペア:

[(1, 18907892), (2, 9453946), (4, 4726973), (31, 609932), (62, 304966), (124, 152483), (139, 136028), (278, 68014), (556, 34007), (1097, 17236), (2194, 8618), (4309, 4388)]