664222779

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{1217}}^1$

素因数の和:1420

約数の個数: 48

約数和(自身を含む): 1083045600

約数和(自身を除く): 418822821

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 149, 333, 407, 447, 1217, 1221, 1341, 1639, 3651, 3663, 4917, 5513, 10953, 13387, 14751, 16539, 40161, 45029, 49617, 60643, 120483, 135087, 181333, 181929, 405261, 495319, 543999, 545787, 1485957, 1631997, 1994663, 4457871, 5983989, 6709321, 17951967, 20127963, 60383889, 73802531, 221407593, 664222779]

約数ペア:

[(1, 664222779), (3, 221407593), (9, 73802531), (11, 60383889), (33, 20127963), (37, 17951967), (99, 6709321), (111, 5983989), (149, 4457871), (333, 1994663), (407, 1631997), (447, 1485957), (1217, 545787), (1221, 543999), (1341, 495319), (1639, 405261), (3651, 181929), (3663, 181333), (4917, 135087), (5513, 120483), (10953, 60643), (13387, 49617), (14751, 45029), (16539, 40161)]