19888902

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{11161}}^1$

素因数の和:11186

約数の個数: 40

約数和(自身を含む): 48621672

約数和(自身を除く): 28732770

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 81, 99, 162, 198, 297, 594, 891, 1782, 11161, 22322, 33483, 66966, 100449, 122771, 200898, 245542, 301347, 368313, 602694, 736626, 904041, 1104939, 1808082, 2209878, 3314817, 6629634, 9944451, 19888902]

約数ペア:

[(1, 19888902), (2, 9944451), (3, 6629634), (6, 3314817), (9, 2209878), (11, 1808082), (18, 1104939), (22, 904041), (27, 736626), (33, 602694), (54, 368313), (66, 301347), (81, 245542), (99, 200898), (162, 122771), (198, 100449), (297, 66966), (594, 33483), (891, 22322), (1782, 11161)]