215501439

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1\times {\mathrm{313}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 311086080

約数和(自身を除く): 95584641

約数列:

[1, 3, 19, 47, 57, 141, 257, 313, 771, 893, 939, 2679, 4883, 5947, 12079, 14649, 14711, 17841, 36237, 44133, 80441, 229501, 241323, 279509, 688503, 838527, 1528379, 3780727, 4585137, 11342181, 71833813, 215501439]

約数ペア:

[(1, 215501439), (3, 71833813), (19, 11342181), (47, 4585137), (57, 3780727), (141, 1528379), (257, 838527), (313, 688503), (771, 279509), (893, 241323), (939, 229501), (2679, 80441), (4883, 44133), (5947, 36237), (12079, 17841), (14649, 14711)]