72490719

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1873}}^1$

素因数の和:1999

約数の個数: 32

約数和(自身を含む): 117537280

約数和(自身を除く): 45046561

約数列:

[1, 3, 7, 19, 21, 57, 97, 133, 291, 399, 679, 1843, 1873, 2037, 5529, 5619, 12901, 13111, 35587, 38703, 39333, 106761, 181681, 249109, 545043, 747327, 1271767, 3451939, 3815301, 10355817, 24163573, 72490719]

約数ペア:

[(1, 72490719), (3, 24163573), (7, 10355817), (19, 3815301), (21, 3451939), (57, 1271767), (97, 747327), (133, 545043), (291, 249109), (399, 181681), (679, 106761), (1843, 39333), (1873, 38703), (2037, 35587), (5529, 13111), (5619, 12901)]