20916441

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8513}}^1$

素因数の和:8542

約数の個数: 32

約数和(自身を含む): 38142720

約数和(自身を除く): 17226279

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8513, 25539, 59591, 76617, 110669, 178773, 229851, 332007, 536319, 774683, 996021, 1608957, 2324049, 2988063, 6972147, 20916441]

約数ペア:

[(1, 20916441), (3, 6972147), (7, 2988063), (9, 2324049), (13, 1608957), (21, 996021), (27, 774683), (39, 536319), (63, 332007), (91, 229851), (117, 178773), (189, 110669), (273, 76617), (351, 59591), (819, 25539), (2457, 8513)]