19281978

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1033}}^1$

素因数の和:1119

約数の個数: 48

約数和(自身を含む): 45003816

約数和(自身を除く): 25721838

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 61, 102, 122, 153, 183, 306, 366, 549, 1033, 1037, 1098, 2066, 2074, 3099, 3111, 6198, 6222, 9297, 9333, 17561, 18594, 18666, 35122, 52683, 63013, 105366, 126026, 158049, 189039, 316098, 378078, 567117, 1071221, 1134234, 2142442, 3213663, 6427326, 9640989, 19281978]

約数ペア:

[(1, 19281978), (2, 9640989), (3, 6427326), (6, 3213663), (9, 2142442), (17, 1134234), (18, 1071221), (34, 567117), (51, 378078), (61, 316098), (102, 189039), (122, 158049), (153, 126026), (183, 105366), (306, 63013), (366, 52683), (549, 35122), (1033, 18666), (1037, 18594), (1098, 17561), (2066, 9333), (2074, 9297), (3099, 6222), (3111, 6198)]