128218251

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1583}}^1$

素因数の和:1648

約数の個数: 48

約数和(自身を含む): 216691200

約数和(自身を除く): 88472949

約数列:

[1, 3, 7, 19, 21, 29, 49, 57, 87, 133, 147, 203, 399, 551, 609, 931, 1421, 1583, 1653, 2793, 3857, 4263, 4749, 11081, 11571, 26999, 30077, 33243, 45907, 77567, 80997, 90231, 137721, 210539, 232701, 321349, 631617, 872233, 964047, 1473773, 2249443, 2616699, 4421319, 6105631, 6748329, 18316893, 42739417, 128218251]

約数ペア:

[(1, 128218251), (3, 42739417), (7, 18316893), (19, 6748329), (21, 6105631), (29, 4421319), (49, 2616699), (57, 2249443), (87, 1473773), (133, 964047), (147, 872233), (203, 631617), (399, 321349), (551, 232701), (609, 210539), (931, 137721), (1421, 90231), (1583, 80997), (1653, 77567), (2793, 45907), (3857, 33243), (4263, 30077), (4749, 26999), (11081, 11571)]