648735321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1\times {\mathrm{769}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 946570240

約数和(自身を除く): 297834919

約数列:

[1, 3, 13, 39, 97, 223, 291, 669, 769, 1261, 2307, 2899, 3783, 8697, 9997, 21631, 29991, 64893, 74593, 171487, 223779, 281203, 514461, 843609, 969709, 2229331, 2909127, 6687993, 16634239, 49902717, 216245107, 648735321]

約数ペア:

[(1, 648735321), (3, 216245107), (13, 49902717), (39, 16634239), (97, 6687993), (223, 2909127), (291, 2229331), (669, 969709), (769, 843609), (1261, 514461), (2307, 281203), (2899, 223779), (3783, 171487), (8697, 74593), (9997, 64893), (21631, 29991)]